My DES result about BFS! -- CFD Online Discussion Forums

July 20, 2011, 08:44	My DES result about BFS!	#1
aladdincham New Member Aladdin Join Date: Jan 2010 Posts: 26 Rep Power: 16	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! 1.jpg 2.jpg 3.jpg

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