关于假扩散

emayredsun

有没有高手在这方面有研究的。请指给我一条明路！！！！

yelsen

请看帕坦卡的“传热与流体流动的数值计算“一书。

fluidman

TAO WEN QUAN's book ---computational heat tranfer-- also has many discussion on it.

sillybear

假扩散 is caused by the differentiational scheme. If you use the central difference sheme(CDS), you will not have that problem(but you should set much denser grids to provent oscillatory results).

sunmoon

sometime 假扩散 is useful as 'artificial viscosity', and used to eliminate oscillation of computational results, especially for shock problem.