|
|
发表于 2003-5-11 07:30:37
|
显示全部楼层
CFD free software!
CFD free software
UIFlow
link to UIFLOW
Article: 177 of sci.physics.computational.fluid-dynamics
From Richard Hilson / hilson@pde1.mtv.gtegsc.com
Subject: UIFlow and Post3D
Date: 29 Apr 94 12:23:14 -0800
I got a copy of the 2D CFD code *UIFlow* from NCSA for the Mac. It seems
to work. For those who are interested, UIFlow can be found in
ftp.ncsa.uiuc.edu (141.142.20.50) in the file Mac/UIFlow.
--------------------------------------------------------------------------------
Foil 1.0.2
link to Foil
Article: 193 of sci.physics.computational.fluid-dynamics
From Robin B. Lake / rbl@hal.cwru.edu
Subject: Airfoil Program for Mac Available
Date: 3 May 1994 00:34:46 GMT
I happened across a program in the info-mac archives at
sumex-aim.stanford.edu today. To my surprise, it turns out to be:
"This is the ReadMe file for Foil 1.0.2, a Macintosh airfoil
generation and display program. Foil 1.0.2 is System 6/7 happy,
meaning it should run equally well under both systems. Foil is free,
but not public domain. I retain all rights, and it may not be
distributed in modified form, or without any of the files. Since it's
free, please read the file "A Note About the Author".
--------------------------------------------------------------------------------
PPM -- Piecewise Parabolic Method
Colella, P., Woodward, P.R., 1984, J. Comput. Phys., 54, 174.
PPM is high-order (3/2), shock-capturing Godunov-type method. Before using PPM take a look at some papers, and read infomation about DE and LR versions.
Direct Eulerian version
Tomasz Plewa
MPA
tomek@MPA-Garching.MPG.DE
Date: 10 Jun 94
link to DE version
DE version is generally accessible through WWW ftp link.
Please, let me know if you have no access to WWW server.
Lagrangian Remap version (1)
Greg Lindahl
University of Virginia
lindahl@pbm.com
Date: 29 Jun 94
link to LR version
Lagrangian Remap version (2)
Virginia Hydrodynamics-1
Theoretical Astrophysics, Dept. of Physics
NCSU
Date: 03 Apr 95
--------------------------------------------------------------------------------
General Relativity NCSA group (black hole evolution)
Relativity Group
National Center for Supercomputing Applications
University of Illinois at Urbana-Champaign
Home Page and summary.
ONEDBH (no source here?)
ONEBH (overview and source)
3D codes front end.
--------------------------------------------------------------------------------
NACA airfoils
Collection of articles and links related to NACA airfoils is here.
--------------------------------------------------------------------------------
College of Marine Studies (sci.geo.fluids models)
README file and ftp link.
--------------------------------------------------------------------------------
Ocean models
Geophysical Fluid Dynamics Laboratory
GFDL's home page and MOM page (also ftp).
Princeton Program in Atmospheric and Oceanic Sciences (AOS)
thanks to Arkady Terzhevik Arkady.Terzhevik@tvrl.lth.se
AOS' home page and POM home page.
The Parallel Ocean Program (POP)
POP's home page, Fluid Dynamics Group (T-3), LANL.
--------------------------------------------------------------------------------
CLAWPACK (library of codes by Randall LeVeque)
Randall J. LeVeque
Applied Mathematics Dept., FS-20
University of Washington
Seattle, WA 98195
rjl@amath.washington.edu
Version 2.0 of clawpack is now available from netlib, in pdes/claw.
See also the homepage at URL
ftp://amath.washington.edu/pub/leveque/programs/clawpack.html
There are several new features and applications, and expanded documentation.
CLAWPACK -- Conservation LAWs software PACKage
------------------------------------------------
Version 1.0 of CLAWPACK is now available from netlib. This is a
package of Fortran subroutines for solving hyperbolic systems of
conservation laws in one and two space dimensions. (Future versions
should include 3D.) High resolution flux-limiter methods are used,
based on solving one-dimensional Riemann problems. In two dimensions,
multi-dimensional wave-propagation methods are used. The current
version supports only uniform Cartesian grids in rectangular domains,
and is intended primarily as a research and teaching tool. The
modular form should make it easy to modify and experiment with other
methods, as well as to apply it to new problems.
The code requires that the user supply a Riemann solver for the
problem being solved and also a subroutine that implements the
boundary conditions. Source terms can also be handled (via Strang
splitting) in which case an ODE solver for the source terms must also
be supplied. Several examples of different Riemann solvers are
included with the package, including e.g., advection equation,
Burgers' equation, Euler equations, isothermal equations, shallow
water equations. Various different boundary conditions are also
demonstrated, such as periodic, inflow, nonreflecting, and solid
walls. Numerous example drivers are included to demonstrate the use
of these subroutines. Matlab m-files are included to graphically
display the output, or they can be used as a model for writing
graphics routines in other languages. Documentation is included in
the package, including the postscript file for an introductory paper
on the package.
The package can be obtained from netlib, where it resides in the library
pdes/claw. This directory currently contains:
index the index
clawpack the basic package, with 1d, 2d routines and many examples
doc documentation (postscript files of papers, slides)
advection applications of clawpack to 2d advection equations, with
examples from a recent paper on this subject (in doc).
nozzle application of clawpack to the quasi-1d nozzle problem.
vBurgers viscous Burgers' equation, with diffusion equation as source.
L-domain L-shaped domains, such as the forward facing step problem.
My hope is that a library of more sophisticated applications will be
gradually built up, and contributions from other users will be
gratefully accepted.
The package may be obtained by anonymous ftp from netlib.att.com, where it resides in netlib/pdes/claw. The file netlib/pdes/claw/clawpack.shar is a tar file of the entire directory. Files can also be obtained by sending e-mail to netlib@research.att.com. Send the message "help" to this address for more information. Alternatively, you can obtain files by ftp through Mosaic using the URL ftp://netlib.att.com/netlib/pdes/claw/index.html . It is also possible to browse through the library using Mosaic from ftp://amath.washington.edu/pub/leveque/programs/clawpack.html .
--------------------------------------------------------------------------------
HEATING (a multdimensional heating conduction code)
Kenneth. W. Childs / kch@ornl.gov
Heat Transfer and Fluid Flow Group
Oak Ridge National Laboratory
HEATING is a general-purpose, conduction, heat transfer program
written and maintained by the Heat Transfer and Fluid Flow Group
(HTFFG).[...]
More about HEATING.
From Jonas T. Holdeman, Jr. / hol@ornl.gov
Date: Tue, 07 Feb 1995 15:09:52 -0500
I understand both workstation and PC versions of the HEATING code are
available freely from the authors, Gary Giles (geg@ornl.gov) and Ken Childs
(kch@ornl.gov). [...] Please check with the authors for latest
information.
--------------------------------------------------------------------------------
PHI3D (3D FEM Navier-Stokes code)
Paul T. Williams / ptw@ornl.gov
Heat Transfer and Fluid Flow Group
Oak Ridge National Laboratory
As a part of validation studies for the locally developed finte-element
incompressible Navier-Stokes Code PHI3D [...]
More about PHI3D.
From Jonas T. Holdeman, Jr. / hol@ornl.gov
Date: Tue, 07 Feb 1995 15:09:52 -0500
PHI3D was developed by Paul Williams (ptw@ornl.gov) for his Ph.D.
dissertation. He says it needs to be cleaned up before he will release it.
If someone were willing to give him some funding, this process could be
speeded up, as he has no funding to work on the code at present.
--------------------------------------------------------------------------------
HYDRO (Two-dimensional Lagrangian hydrodynamics code)
From Hao Chen / hchen@s1.msi.umn.edu
ftp link
Los Alamos National Laboratory
Benchmarking Section of Group C-3
Dennis V. Brockway, Fred Gama-Lobo, Karl Wallick, John Romero, & Steve W. White
May 1, 1984
HYDRO.DOC
ABSTRACT: This is a two-dimensional Lagrangian hydrodynamics code based on
an algorithm of W.D. Schultz.
NUMERICAL: According to the report below, HYDRO is representative of a large
class of codes used in the Los Alamos Laboratory and is 100%
vectorizable.
NOTES: HYDRO is very similar to SIMPLE - Almost identical methods.
However, HYDRO can handle General Geometry, while SIMPLE uses Fixed
Geometry (Equation of state table 2X2)
AUTHORS: produced under U.S. government contract (w-7405-eng-36)
by Los Alamos National Laboratory
by D. Brockway, F. Gama-Lobo, K. Wallick, J. Romero, S. White
Contact benchmarking section of group c-3 LANL (505)667-7028
REFERENCES: Report: Los Alamos Laboratory Computer Benchmarking 1988
H.J. Wasserman
William D. Schulz
Methods of Computational Physics
Volume 3, 1964
--------------------------------------------------------------------------------
Cullimore and Ring Technologies, Inc.
From Brent Cullimore / crtech@netcom.com
Cullimore and Ring Technologies, Inc.
49 Dawn Heath Circle
Littleton Colorado 80127-4303
(303) 971-0292
crtech@netcom.com
Note that there is a new ftp site: ftp://ftp.csn.net/crtech and a new home page: http://www.webcom.com/~crtech.
C&R Technologies is pleased to announce the availability of a new
anonymous ftp site containing FREE SOFTWARE and other information
related to our heat transfer and fluid flow simulation code
SINDA/FLUINT and its graphical user interface, SINAPS.
============================== SINDA/FLUINT ===============================
A comprehensive finite-difference lumped-parameter tool for analyzing
complex thermal/fluid systems. Suitable for both preliminary design
and point design simulation, at both the component and system
level. SINDA/FLUINT is used at over 300 sites in the aerospace,
energy, electronic, HVAC, medical, and automotive industries.
Capabilities include: steady and transient analyses, radiation,
convection, and conduction heat transfer, single- and two-phase flow,
fluid mixtures, time- and temperature-varying properties, and user
logic for control and customization.
Applications include thermal and environmental control, propulsion,
electronics packaging, and power generation.
================================= SINAPS ==================================
A modern graphical user interface to SINDA/FLUINT. Enables users to
sketch thermal/fluid circuits, validate/preprocess inputs
interactively, and then visualize, interpret, and report results
graphically.
Capabilities include: algebraic and functional in-puts; depiction of
large, complex networks, colorization by value, animation through
time, and pop-up X-Y, bar, and polar plots.
============================== Availability ===============================
Sun Microsystems SPARCstations(tm), SunOS 4.1.X or Solaris 2.X
Hewlett-Packard Apollo(tm) Series 700 Workstations
IBM PCs and 100% compatibles
Apple Macintosh(tm) II
=========================== About the ftp site ============================
A README file contains a current description of the site contents.
The site contains:
(1) Newsletters, announcements, and patches (as available)
(2) Product information, brochures, and SINAPS pictures
(3) New tutorial introductions to SINDA, FLUINT, and SINAPS
(4) SINDA/FLUINT Version 3.0. Fully functional copies of SINDA/FLUINT
limited to 50 thermal nodes and 10 fluid lumps. This is enough to
run most of the (provided) SINDA/FLUINT sample problems, as well
as student or evaluation problems.
(5) SINAPS Version 2.1 demo. Enables full evaluation of SINAPS without
the ability to save work in progress. Together with a copy of
SINDA/FLUINT, you can develop, preprocess, launch, and postprocess
your own model, or you can experiment with sample problems.
PLEASE TAKE NOTE OF THE LICENSE AGREEMENT AND SYSTEM REQUIREMENTS
BEFORE DOWN- LOADING OR INSTALLING THESE CODES. SINDA/FLUINT requires
a specific Fortran 77 compiler on each machine (which regrettably are
not ours to offer for free). SINAPS requires 16MB RAM on personal
computers (PC/Mac), 32MB on workstations (Sun/HP).
All of the code and documentation we would ideally like to provide may
not yet be available on this site. If you do not find what you need,
or would like a different format, media, etc., please contact us and
we can either update the site and/or send disks, hardcopies, etc.
--
_______
_____ \| \\
// \| || || Cullimore and Ring Technologies, Inc.
|| | ||___// 49 Dawn Heath Circle
|| || \\ Littleton Colorado 80127-4303
|| || \\ (303) 971-0292
\\ || \\ crtech@netcom.com
========================================================================
Thermal/Fluid System Design and Analysis
--------------------------------------------------------------------------------
STSWM (Spectral Transform Shallow Water Model)
From Hao Chen / hchen@s1.msi.umn.eduftp link
File: README
SPECTRAL TRANSFORM SHALLOW WATER MODEL (Version 2.0)
Copyright (C) 1992
University Corporation for Atmospheric Research
All Rights Reserved
Ruediger Jakob
National Center for Atmospheric Research
Boulder, CO 80307-3000
August 1992
Contents
--------
1. Software Distribution Conditions
2. Description of Software
3. Directory of Files
4. Corrections and Changes
[...]
Another version of this code (or postprocessor?) is called REFSOL. REFSOL uses netcdf package.
PSTSWM: a message-passing version is also available.
NA Digest Sunday, May 28, 1995 Volume 95 : Issue 22
From: Pat Worley
Date: Wed, 24 May 1995 12:48:20 -0400
Subject: PICL and PSTSWM software updates
[snip]
PSTSWM
PSTSWM v4.0 is now available from http://www.epm.ornl.gov/chammp/pstswm.
(It has been available for awhile, but the user guide has just been
updated.)
PSTSWM is a message-passing benchmark code and parallel algorithm
testbed that solves the nonlinear shallow water equations on a
rotating sphere using the spectral transform method. PSTSWM was
developed by to evaluate parallel algorithms for the spectral
transform method as it is used in global atmospheric circulation
models. Multiple parallel algorithms are embedded in the code and can
be selected at run-time, as can the problem size, number of
processors, and data decomposition. This flexibility allows the code
to be tuned on a parallel platform before benchmarking, thus
evaluating the multiprocessor on its ability to solve the numerical
problem rather than it ability to execute a given fixed parallel
implementation. Six different problem test cases are also supported,
each with associated reference solutions and solution and error
analysis options.
As of 4/1/95, PSTSWM runs on the Cray Research T3D, the IBM SP-1 and
SP-2, the Intel iPSC/2, iPSC/860, DELTA, and Paragon (on both GP and
MP nodes and using either the NX or SUNMOS operating systems), the
nCUBE/2 and nCUBE/2S, across a network of SUN and IBM workstations,
and on a Cray vector machine (as a serial application). Message
passing is implemented using MPI, PICL, PVM, and/or native message
passing libraries, with the choice being made at compile time. In
principle, it should also run on any other platform on which MPI,
PICL, or PVM is available.
To aid in tuning and in understanding the parallel performance, PSTSWM
has been instrumented for the collection of performance data using the
PICL trace and profile collection interface. The PICL implementation
of the code must be used in order to collect performance data on
interprocessor communication but a mixed PICL/native implementation is
also provided that can be used to collect data on events not related
to message passing. In the mixed implementation, the performance
sensitive message passing uses native commands and PICL is only used
in the collection of the performance data.
For more information or for alternative ways of acquiring source code,
contact:
Pat Worley
worleyph@ornl.gov
--------------------------------------------------------------------------------
FCT (Flux-Corrected Transport)
link to FCT page
Overview
Flux-Corrected Transport (FCT) is a conservative, monotone technique
for integrating generalized continuity and hydromagnetic
equations. [...]
FCT was the first of the class of high-order, monotone schemes for
solving generalized continuity equations (e.g., the equations of
Eulerian hydrodynamics). An FCT bibliography of basic papers is posted
here.
A suite of FCT modules with test programs is being developed for
posting to the HPCC/ESS Software Exchange. [...]
The software for solving 2D hydrodynamical problems will be found in
the package LCPFCT2. For 2D magnetohydrodynamical (MHD) applications,
the package MHDFCT2 also will be needed. Similar software packages
LCPFCT3 and MHDFCT3 eventually will be posted for solving 3D problems.
[...]
C. Richard DeVore
Laboratory for Computational Physics & Fluid Dynamics, Naval Research
Laboratory
--------------------------------------------------------------------------------
NSC2KE (N-S finite-volume Galerkin 2D code)
Bijan Mohammadi
INRIA-MENUSIN
Domaine de Voluceau
BP 105
78153 Le Chesnay, Rocquencourt
FRANCE
mohamadi@menusin.inria.fr
2D and AXI Euler and Navier-Stokes equations solver
o explicit multi-steps time integration process
o upwind schemes and linear interpolation method for
the computation of the convective fluxes using a finite
volume formulation.
o classical central galerkin p1-finite element method
for the computation of the diffusive fluxes
o k-epsilon turbulence model with two-layer approach or wall laws
Copyright(C) 1994 Bijan Mohammadi-Stephane Lanteri
Abstract and user guide.
--------------------------------------------------------------------------------
HENSA archive (FLUX, NSUVP, TEAM, VORTEX)
Public ftp archive of the CFD Community Club at the Rutherford Appleton Laboratory.
--------------------------------------------------------------------------------
FEMLAB
FEMLAB group
Dep. of Mathematics
Chalmers University of Technology
Göteborg
Sweden
FEMLAB is an interactive program for the numerical solution
of ordinary and partial differential equations based on the
Finite Element Method in adaptive form with automatic error
control.
Femlab is distributed freely to anyone interested. You may read more about FEMLAB and find what do you need to get FEMLAB running. Finally, you may download FEMLAB.
--------------------------------------------------------------------------------
Riemann Problem Package
Eli L. Isaacson, Dan Marchesin, and Bradley J. Plohr
SUNY Department of Applied Mathematics and Statistics
The executable file "rp" contained in the present directory has been compiled on a SPARCstation 2. It requires OpenWindows 2.0 and the Sun Fortran library to work.
The program "rp" is an interactive graphics program for
exploring systems of two quadratic conservation laws.
It includes the ability to construct:
integral curves
Hugoniot curves
wave curves (comprising rarefaction, shock,
and composite segments)
wave speed diagrams
bifurcation loci (including coincidence, inflection,
secondary bifurcation, and double sonic loci)
solutions of Riemann problems
**************************************************************************
NOTICE: You are free to use this program for studying quadratic models
and formulating conjectures about their solutions. If this program
provides useful insight, please acknowledge its use in any relevant
publication.
**************************************************************************
--------------------------------------------------------------------------------
CHAMMP repository
Access via ftp. Here is an excerpt from README file:
Downloaded from netlib2.cs.utk.edu; 2/24/94
# chammp
# ======
# This directory contains items relating to the numerical solution
# of the shallow water equations in spherical geometry.
# The shallow water equations are used as a kernel for both
# oceanic and atomospheric general circulation models and
# are of interest in evaluating numerical methods for weather
# forecasting and climate modeling. The DOE Computer Hardware,
# Advanced Mathematics and Model Physics (CHAMMP) program
# is interested in the development of new mathematical methods
# for these problems. To promote this developmet, a set of
# test cases has been proposed and example software and reference
# solutions are provided.
[snip]
--------------------------------------------------------------------------------
NACHOS - FEM for incompressible flows
From Jonas T. Holdeman, Jr. / hol@ornl.gov
Date: Tue, 07 Feb 1995 15:09:52 -0500
I am surprised you don't have any mention of the NACHOS II code by D. K.
Gartling of Sandia National Laboratory, Albuquerque, New Mexico 97185, USA.
I had no trouble obtaining a free copy. The code is documented in two
reports: "NACHOS II - A Finite Element Computer Program for Incompressible
Flow Problems, Part I - Theoretical Background (SAND86-1816 UC-32) and Part
II - User's Manual (SAND86-1817 UC-32). The code is written in Fortran. It
features triangular and quadrilateral elements, primative variables, with
post-processing for stream-function, fluid stress and flux computation.
I heard that Gartling was working on a 3D version of Nachos, but I don't
know for sure. There should be several other codes from Sandia.
--------------------------------------------------------------------------------
FMS-1D (Fluid Modeling System)
Barry Merriman / bmerriman@UCSD.EDU
UCSD Fusion Energy Research Center
UCLA Dept. of Math
FMS (Fluid Modeling System) is a system for constructing and
numerically solving the kinds of equations that arise in
general fluid flow problems, i.e. systems of conservation
laws. The current version handles flows in one space
dimension, plus time. FMS is intended to be a flexible and
powerful general purpose tool for this type of modeling.
The user supplies FMS with a description of the spatial
domain, and the system of equations to be solved, including
any boundary conditions or initial conditions, and FMS
attempts to compute the the corresponding solution (steady
state or time dependant).
--------------------------------------------------------------------------------
NPARC Flow Solver
From Ralph Jones / jones@hap.arnold.af.mil
Date: Mon, 27 Feb 95 14:02:11 -0600
THE NPARC FLOW SIMULATOR
The NPARC code embodies the most recent, proven CFD technology
available. It is a general-purpose fluid flow simulator ideally suited
to applications which involve complex geometries. In the hands of a
fluid dynamist with a basic familiarity with CFD technology, the NPARC
code is a powerful tool for the analysis of many complex flows of
immediate interest.
GENERAL DESCRIPTION
The NPARC Navier-Stokes code is a general purpose computational fluid
dynamics (CFD) tool which is applicable to a wide variety of aerospace
design and analysis problems involving fluid flow. It is actively
supported by the NPARC Alliance, a partnership between the NASA Lewis
Research Center and the Arnold Engineering Development Center. This
Alliance seeks to enhance the military and commercial competitiveness
of the United States through the establishment of the NPARC code as a
national resource.
The NPARC flow simulation program is used to calculate the properties
of a fluid flow, based on specified boundary surfaces and flow
conditions. These boundary surfaces can be quite complex and the fluid
can be treated generally. Inviscid and viscous flows can be
calculated. Viscous flows can be laminar or turbulent and can be
treated as fully viscous or as shear layer flows. This computer
program may be used to simulate steady-state and transient flows. The
NPARC code, which is written in FORTRAN 77, is easily ported to most
computer architectures (e.g. SGI and IBM workstations, VAX
minicomputers, Cray and Convex supercomputers). It is robust and
fairly easy to use. Anyone who is familiar with computers and has a
basic understanding of the physics of fluid flows should have little
trouble learning how to apply the NPARC code.
NPARC code flow simulations have had a demonstrable impact on
aerospace propulsive applications as diverse as supersonic and
hypersonic inlet design, rocket nozzle failure analysis, and turbine
engine exhaust mixer design. This computer program has also proven
capable of treating many other aerodynamic problems, such as, missile
nose cone analysis, instrumentation probe design, and ducted flow
analysis.
TECHNICAL FEATURES
The principal distinguishing features of the NPARC flow simulation
software are its generality, flexible grid requirements, robustness,
and modeling versatility.
GENERALITY
The basis of the algorithms used in the NPARC code is the complete
Navier-Stokes equations in conservation law form. Various
specializations are provided. For example, the viscous terms can be
selectively calculated so that a thin-layer simulation can be
performed or an inviscid (Euler) flow-field calculated. Similarly, for
viscous simulations the fluid flow can be treated as laminar or
turbulent as desired.
GRID FLEXIBILITY
The principal distinguishing feature of the NPARC code is its
generalized treatment of boundary conditions. Physical and
computational boundaries may be located on any grid surface without
restriction. Any portion of any grid surface may be a boundary
surface. Common boundary conditions (e.g., slip and no-slip wall,
symmetry plane, free-stream) can easily be selected for each
boundary. These features allow complex geometries to be readily
treated using a single grid. Complex geometries may also be broken
into a number of grid blocks. Grid blocking circumvents computer
memory limitations, simplifies grid generation about complex
geometries and permits grid embedding techniques. Communication
between grid blocks is accomplished through the overlapping of
grids. Adjoining grid blocks do not need to have an exact match of
grid points.
ROBUSTNESS
The NPARC code is also very robust. A semiautomatic time-step control
feature allows flow simulations to proceed from nearly arbitrary
initial conditions with little danger of divergence. This is
accomplished by monitoring and limiting the maximum change in the flow
field between iterations. In steady-state calculations, the time-step
size is determined by stability considerations. An optimal time-step
size is used for each grid point, reducing the total number of
iterations to reach steady-state.
TURBULENCE MODELS
Another distinguishing feature of the NPARC code is its flexible
turbulence modeling capabilities. The general purpose algebraic
turbulence model, although optimized for free shear layers at moderate
Mach numbers, provides reasonable viscous effects for almost any
combination of shear layers. A standard Baldwin and Lomax algebraic
turbulence model is also provided as an option when maximum accuracy
is required in skin friction and heat transfer. When an algebraic
turbulence model is inappropriate, either a one-equation model
(Baldwin-Barth) or a two-equation model (Chien k-epsilon) may be used.
ALGORITHMS
Almost any flow idealization can be simulated: 2-D, axisymmetric, or
3-D; inviscid, laminar, or turbulent; steady state, or
transient. These flow simulations are calculated using either the
pentadiagonalized form of the Beam and Warming approximate
factorization algorithm or the Jameson multilevel scheme. The Beam and
Warming algorithm is an implicit, computationally robust scheme for
solving the Navier-Stokes equations. The most attractive feature of
the algorithm, as modified by Pulliam, is that it forms an ADI type of
scheme in which each sweep involves the inversion of a set of scalar
pentadiagonal matrices. The Jameson multilevel algorithm is
second-order accurate in time. It may be used in the form of a
three-, four- or five- stage scheme. The Beam and Warming algorithm
has the best convergence properties, while the Jameson scheme has the
best time-accuracy.
ACQUISITION
ELIGIBILITY AND ALLOWABLE USES
The NPARC Software is releasable to all US owned companies, public and
private Universities, and government agencies. However, only US
citizens and resident aliens may have access to the software. In
general requests from foreign owned, controlled, or influenced
(nonresident foreign nationals on the board of directors) corporations
will not be granted. AEDC will use the Defense Logistic Agency or the
Defense Investigative Service database to verify the ownership of the
corporation. Corporations or other entities not listed in these
databases will be considered on a case by case basis. The software may
be used for any purpose in the national interest. This includes
enhancing either the economic or military competitiveness of the
United States. It may not be used in a contract with a foreign
government. Other restrictions are detailed in the Memorandum of
Agreement form which must accompany a request for the software.
SOFTWARE RELEASE
In order to obtain a copy of the NPARC software and documentation, you
must fill out the appropriate Software Release Form. There are
separate forms for US GOVERNMENT and COMMERCIAL AND ACADEMIC
release. This form establishes a Memorandum of Agreement which is the
legal mechanism for releasing the NPARC Software to users. It is an
Arnold Engineering Development Center (AEDC) form used to release all
AEDC developed and/or managed software. The form may be typed or hand
written in ink. For copies of the Memorandum of Agreement forms and
instructions, see FOR MORE INFORMATION below.
Completed forms should be forwarded (via mail or FAX) to:
NPARC Support
Attn.: Dr. Kyle Cooper
1099 Avenue C
Arnold AS, TN 37389-9013 FAX: 615-454-6317
RECEIVING THE SOFTWARE
The software can be made available on a variety of mediums (e.g., 1/4
inch tape, 5 1/4 or 3 1/2 inch disk) or via electronic transfer. One
should expect to receive the software approximately two weeks after
AEDC receives the Memorandum of Agreement form.
FOR MORE INFORMATION
I you have any questions concerning NPARC capabilities or acquisition (including requests for Memorandum of Agreement forms and instructions), or the NPARC Alliance, call 615-454-7455 (this number will connect you to the NPARC Hotline at the Arnold Engineering Development Center, Arnold Air Station, TN USA) or send email to nparc-support@info.arnold.af.mil. Alternatively, you may contact the NPARC WWW home page at http://info.arnold.af.mil/nparc/.
See also: Pointwise/Gridgen.
--------------------------------------------------------------------------------
QUICK 'n SIMPLE
From Gerald Recktenwald / gerry@ee.pdx.edu
PSU Mechanical Engineering
P.O. Box 751
Portland, OR 97207
(503) 725-4296
We have developed a free, 2-D CFD program for the Macintosh
called QUICK 'n SIMPLE, or "QnS" for short.
The program combines a graphical user interface, for specification
of the problem, with an iterative control-volume finite-difference
solution algorithm to solve two-dimensional convection with
diffusion of a passive scalar. It uses either the SIMPLE or
SIMPLER coupling algorithms and allows the user to select from
three popular upwinding schemes: pure upwinding, power-law
differencing scheme (PLDS), and the quadratic upstream
interpolation for convective kinematics (QUICK) scheme.
As the name implies, the program is designed to be both quick and
simple to use.
You can check it out, and download a copy if you like, from our web
server at
http://www.me.pdx.edu/~gerry/QnS
If you don't have a web browser, then you can also get a
copy via anonymous ftp site at
ee.pdx.edu/pub/users/faculty/gerry/QnS,
but its not nearly as fun, and you don't get to see our cool
examples and tutorial.
We have three versions available: 1) 68K, 2) 68K w/ fpu, and 3)
PowerMac. The only limit on the size of the problem you can solve
is the memory of your Mac. The 68k version (without fpu) can't
solve large problems in reasonable amounts of time, but QnS
really sings on a PowerMac. The PowerMac version runs over 200
times faster (not a typo) than the 68K version, so a problem
which may take 30 seconds on a PowerMac would take nearly two hours
on a 68K machine. The fpu version is somewhere in between, but
closer in speed to the 68K version.
Let us know what you think.
Scott J. Forbes
Department of Mechanical Engineering
University of Akron, Akron, OH 44325-3903
MacIsBack@aol.edu
Gerald W. Recktenwald
Department of Mechanical Engineering
Portland State University, Portland, OR 97207-0751
http://www.me.pdx.edu/~gerry
gerry@me.pdx.edu
--------------------------------------------------------------------------------
ViewProf
From Matti E Hy|tyniemi / elvis@vipunen.hut.fi
Helsinki University of Technology
Date: Tue, 26 Sep 1995 19:59:01 +0200
ViewProf is inviscid 2-d multiblock Oellers method panel solver for
Windows 3.1.
It is public domain and available via Web at http://www.hut.fi/~elvis,
or by FTP at ftp.funet.fi/pub/sci/physics.
--------------------------------------------------------------------------------
Numerical models at IMCS
Kate Hedstrom / kate@ahab.rutgers.edu
Institute of Marine and Coastal Sciences
Rutgers, The State University of New Jersey
For more information about SPEM/SCRUM/SEOM/BBL see http://marine.rutgers.edu/po/.
--------------------------------------------------------------------------------
Synergium's CFD Tools
From Alex Portalatin / avia@gate.net
Date: Tue, 14 Nov 95 12:37:37 -0800
We have now made available a FREE evaluation version of the AVIA system
at our site http://www.gate.net/~avia/.
See also: Synergium's CFD Tools (commercial).
--------------------------------------------------------------------------------
ALLSPD-3D Combustor Code
Article: 3966 of sci.physics.computational.fluid-dynamics
From David Fricker fsfrick@lerc.nasa.gov
Date: 10 Feb 1996 07:31:57 GMT
Subject: SCIENCE/SOFTWARE: ALLSPD-3D CFD Code
Organization: NASA Lewis Research Center, Cleveland, OH
The ALLSPD Team at NASA Lewis Research Center is pleased to announce
their new web page for the ALLSPD-3D CFD code for gas turbine
combustors.
The ALLSPD-3D Combustor Code is a numerical tool developed by the
Internal Fluid Mechanics Division at the NASA Lewis Research Center
for simulating chemically reacting flows in aerospace propulsion
systems. It provides the designer of advanced engines an analysis
tool that employs state-of-the-art computational technology. The code
can simulate multi-phase, swirling flows over a wide Mach-number range
in combustors of complex geometry.
This site provides details on ALLSPD-3D, the user manual, and
procedures for obtaining the ALLSPD-3D code. (NOTE: Distribution of
documentation is open to anyone, but distribution of the code is
restricted to U.S. residents.)
Check it out at:
http://www.lerc.nasa.gov/Other_Groups/IFMD/allspd/
--------------------------------------------------------------------------------
Unicom Technology Systems
From Alan Hsing / arc3d@kuhub.cc.ukans.edu
Unicom Technology Systems
2721 Bishop Street
Lawrence, KS 66046
For anyone interested in a handy aerodynamic design code, please check
out VORSTAB-PC 3.1. You can ftp to 'wuarchive.wustl.edu', and
- login as 'ftp',
- use your email id as password,
- change directory to /pub/MSDOS_UPLOADS/aero,
ftp://wuarchive.wustl.edu/pub/MSDOS_UPLOADS/aero
- get VORSTB31.EXE in binary mode and VORSTB31.TXT in ascii mode,
- read VORSTB31.TXT for instructions on installation.
Email me if you have any problems doing that. Note: the ftp site may get
highly loaded during busy hours. In that case, just be patient and try it
later. Happy computing!
--------------------------------------------------------------------------------
FORTRAN codes for computing the discrete Helmholtz integral operators
From S.M.Kirkup / S.M.Kirkup@mcs.salford.ac.uk
Department of Mathematics and Computer Science
University of Salford
Salford
Greater Manchester M5 4WT
England
Tel: 0161 745 5000
Fax: 0161 745 5559
Description.
These are Fortran subroutines for the evaluation of the discrete form
of the Helmholtz integral operators for 2D, 3D or 3D axisymmetric
problems. The subroutines are useful for the solution of the
Helmholtz equation by boundary element and related methods.
The codes are available free from the author.
--------------------------------------------------------------------------------
NaSt2D
From Helge Tielboerger / tielcad@thermo-a.mw.tu-muenchen.de
Lehrstuhl A fuer Thermodynamik
Technische Universitaet Muenchen
Arcisstrasse 21
80333 Muenchen
Germany
Here is the place where you can get a public domain solver for the
Navier-Stokes-equations.
It is a rather simple Finite-Volume-code but it can solve free-surface-flows.
Additionally there is a book available which describes step by step the
developement of the code.
So the code together with the book is an excellent
introduction into CFD and a good basis to develop more enhanced code.
The code is available via ftp-server:
ftp.lrz-muenchen.de/pub/science/fluiddynamics/cfd/NaSt2D.
Solutions of some problems are available from
http://www5.informatik.tu-muenchen.de/forschung/visualisierung/praktikum.html.
The ReadMe-file from that directory:
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| |
| Das 2D Stroemungssimulationsprogramm NAST2D zum Buch |
| |
| "Numerische Simulation in der Stroemungsmechanik" |
| von M. Griebel, Th. Dornseifer, T. Neunhoeffer |
| Vieweg 1995 |
| |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bemerkungen:
------------
- Die Files sind komprimiert unter PRG.zip, auspacken mit
unzip PRG.zip.
Die Dateien liegen dann in dem Verzeichnis PRG.
Ausserdem liegen die einzelnen Dateien im Verzeichnis UNCOMPRESSED.
- Uebersetzen mit make
- Verwendeter C-Compiler: gcc (siehe makefile)
- Aufruf des Programms mit
run (z.B. run dcavity.par)
- in den Eingabedateien *.par (Beispiele im Unterverzeichnis PARAMETER) sind
die jeweiligen Werte der Problemparameter angegeben (f"ur Diskretisierung,
Fluid, Geschwindigkeit, ..) und werden zu Beginn des Programmes eingelesen.
- Als Probleme sind implementiert:
* dcavity: Nischenstroemung
* backstep: Stroemung ueber eine Stufe
* balken: Hindernisstroemung ueber einen schraegen Balken
* kreis: Hindernisstroemung ueber einen Kreis
* klappen: Stroemung durch ein T-Rohr
* damm: Brechender Damm (freies RWP)
* tropfen: Fallender Tropfen (freies RWP)
* spritzguss: Spritzgussproblem (freies RWP)
* wafa: Stufenstroemung mit freier Oberflaeche
* convection: Temperaturgetriebene Stroemung (beheizte Seitenwaende)
* fluidtrap: Temperaturgetriebene Stroemung mit Hindernissen
* rayleigh: Temperaturgetriebene Stroemung (beheizte obere und
untere Wand)
- Bei Problemen wie der "Stroemung ueber eine Stufe" und der
"Hindernisstroemung" konvergiert die Druckkorrektur anfangs nicht,
da kein divergenzfreies Geschwindigkeitsfeld als Startwerte vorgegeben wird.
Aus diesem Grunde besteht die Moeglichkeit, Ergebnisse einer Simulations-
Rechnung in ein (Zwischen-)Ergebnisfile zu schreiben, welches bei erneuter
Simulation des Problems als Startwert eingelesen werden kann.
Der Name dieses Files muss in den jeweiligen Problemfiles angegeben
werden.
- Das Programm-Paket ist nicht ausfuehrlich kommentiert, hierfuer kann
jedoch das Buch als Leitfaden durch das Programm verwendet werden.
- Zur Spezifikation eigener Beispiele ist insbesondere das Anlegen neuer
Problemfiles sowie die Modifikation der Prozeduren SETSPECBCOND in der
Datei boundary.c und READ_PARAMETER sowie INIT_FLAG in init.c erforderlich.
- Diese Programmversion enthaelt keine Parallelisierung und keine Turbulenz-
simulation.
- Zur Visualisierung der Simulationsergebnisse wurde das Graphiktool IDL
verwendet. Bei Verwendung eines anderen Visualisierungstools muessen
die Ausgabeformate der Prozeduren OUTPUTVEC_bin und streaklines_bin
wahrscheinlich angepasst werden.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Vorsicht: Das Programm wurde auf einer HP-Workstation entwickelt. Es kann
passieren, dass insbesondere auf PCs unter DOS das Programm nicht
einwandfrei laeuft.
Ausserdem sei darauf hingewiesen, dass dieses Programm fuer die
Lehre entwickelt worden ist und daher nur die einfachen Diskreti-
sierungen und Gleichungssystemsloeser verwendet, die im Buch
beschrieben sind.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Bei Rueckfragen wenden Sie sich bitte an
Thomas Dornseifer oder Tilman Neunhoeffer
Institut fuer Informatik
Technische Universitaet Muenchen
D-80290 Muenchen
e-mail: neunhoef@informatik.tu-muenchen.de
dornseif@informatik.tu-muenchen.de
|
|
IP卡
狗仔卡
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
