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-   -   My DES result about BFS! (http://www.cfd-online.com/Forums/main/90770-my-des-result-about-bfs.html)

aladdincham July 20, 2011 07:44

My DES result about BFS!
 
3 Attachment(s)
Hi friends,
I have calculated the Back facing step using DES, my grid is multiblock grid and my time precision is 2nd order. I will give you some picture about the problem i met!
These pictures stand for the vorticity magnitude! We can see a very strange phenomenon in the block interface, there is a obviously grid shear phenonmennon, what`s the problem? Can anyone give me some suggestion?
By the way ,you can press the pictures for a big one and you can see the details!
Attachment 8471

Attachment 8472

Attachment 8473


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