How to use dynSmagorinsky model correctly ? -- CFD Online Discussion Forums

March 9, 2010, 23:16	It's the problem of the grids	#11
foamWang Member Roro Wang Join Date: Mar 2010 Location: Cambridge, MA, USA Posts: 30 Rep Power: 16	Hi xiao, Using smooth delta, I also get a very weired result. I changed the delta back and improved my grid. The simulation doesn't blow up. My case is axis-symmetric. So I use some wedges at the center before. It turns out that wedges significantly destroy the grid quality. It concludes that dynSmagorinsky is sensitive to grid quality. Hope this help you. Regards, roro palmerlee likes this.

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