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[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

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发表于 2003-5-8 21:23:30 | 显示全部楼层 |阅读模式

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任意拉格朗日欧拉描述,常用于流固耦合、金属成形等大变形问题。可以处理网格的畸变问题
发表于 2003-5-11 18:27:01 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

ALE方法,实际上是把输运方程中的各项分开来采用不同的体系进行计算,一般首先处理源项,再处理时间导数项、扩散项,这是在拉式框架下的,接下来在欧拉框架下处理对流项,也分别称之为phase a,phase b and phase c.
发表于 2003-5-12 15:57:30 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

那位可以提供一个比较详细的文档,可以对arbitrary Lagrangian-Eulerian  方法有一个清晰的了解
 楼主| 发表于 2003-5-12 20:10:17 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

期刊网上有一些综述性的文章可以参考一下, 但是没有详细的步骤
奇怪,怎么不能贴上附件?488k的rar贴不上来?
发表于 2003-5-13 20:51:43 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

我也想知道,我想用LS-DYNA来求解流固耦合问题,里面就用到ALE方法。只是苦于无法得到一个有关的算例。
如有热心人了解的话,还请多多指教:
zunzai_lau@mail.china.com
 楼主| 发表于 2003-5-14 12:03:06 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

[这个贴子最后由zyf在 2003/05/14 12:04pm 编辑]

我手头有的关于ale的文章
Coupling fluid (CFD) and structural (FE) models using finite interpolation elements.pdf
ALE formulation for fluid–structure interaction problems.pdf
ALE有限元方法研究及应用.caj
Analysis of fluid–structure interaction problems with structural buckling and large domain changes by ALE finite element method.pdf
Arbitrary Lagrangian-Eulerian multicomponent compressible flow with fluid-structure interaction.pdf
Automatic Monitoring of Element Shape Quality In 2-D and 3-D Computational Mesh Dynamics .pdf
Computational Study of 3-D Flapping Foil Flows.pdf
Coupling An Eulerian Fluid Calculation To A Lagrangian Solid Calculation With The Ghost Fluid Method.pdf
Optimization-Based Reference-Matrix Rezone Strategies for Arbitrary Lagrangian-Eulerian Methods on Unstructured Meshes.pdf
Space-Time Arbitrary Lagrangian-Eulerian Finite Element Methods of Crank-Nicolson Type.pdf
求解流体与结构相互作用问题的ALE有限体积方法.caj
任意拉格朗日-欧拉描述法研究进展.caj
粘性三维流动计算的任意拉格朗日—欧拉法.caj
还有一篇160页的书 (pdf)
Developments of the Arbitrary Lagrangian{Eulerian Method in non-linear Solid Mechanics . Applications to Forming Processes
Christiaan Stoker

各位有没有其他的文章交流一下
发表于 2005-4-19 11:58:46 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

急需这方面的代码,可否贡献?谢谢
发表于 2005-4-23 09:59:17 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

zyf,你能不能给我们上传一下呀?如果上传不了,请给我发一份把,我得邮箱:msl7119@163.com,qq:59842985,pp:msl7119@163.com
发表于 2005-4-24 10:17:02 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

弱弱的问一句:这个ale是不是用在有限元方法中,而不是有限体积法中?
发表于 2005-4-24 22:39:18 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

下面引用由marsmobile2005/04/24 10:17am 发表的内容:
弱弱的问一句:这个ale是不是用在有限元方法中,而不是有限体积法中?
Fluent 中的动网格也是ALE的
发表于 2005-4-26 16:37:59 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

ALE方程也可以用有限体积格式计算!!!我的硕士论文就做了有限体积的!
发表于 2005-4-28 19:34:46 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

zyf,你能否把你说的文章穿上来阿,馋得我直流口水,那些文章好搜嘛?wonder97=÷能不能给点指导和建议!!急盼!qq:59842985
发表于 2005-4-28 19:50:32 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

zyf,  may i share them?
i am studying ale based on fvm.
many thanks in advance!
menghao_dk@hotmail.com
发表于 2005-4-28 23:09:59 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

peric 的书(论坛里有下载)里有一节专门讲动网格. 我粗看了一下, 感觉讲的挺清楚的. 这本书非常好, 建议没读过的下下来看看.
发表于 2005-5-1 18:38:14 | 显示全部楼层

[求助]谁对 Arbitrary-Lagrangian-Euler (ALE)方法比较熟

i am doing a transient computation about gas-liquid problem in 1D, in which a liquid slug treated as incompressible is driven by gas of high pressre and velocity in a pipline with a  90 degree bend at end.
i was thinking to add grid points every two(or four...depends on CFL conditon) time steps, but it did not seem so convenient to be implemented.
i guess ALE would be a good choice to this case, wouldn';t it?
i';ve read some papers, but i am still not very clear how to apply ALE in this case:
1. to tracking the interface, it can be done by setting the interface velocity equal to the fluid velocity at the interface, however, the interface velocity is also an unknown. so how to deal with it?
2. it is only need to take account of gas domain, isn';t it? the up streamboundary is quite straightforward as inflow B.C, but how about the downstream?
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