Time to reach steady state for cavity flow? -- CFD Online Discussion Forums

July 6, 2005, 23:30	Time to reach steady state for cavity flow?	#1
Quarkz Guest Posts: n/a	Hi, I've been testing my NS code for different Re of cavity flow. My range is from 100 to 10000 (as Ghia's) Since mine is a transient solver, I'm not sure when I should stop. It seems that as Re increase, the non-dimensional time to reach steady state also increases. Is that so? Is there any recommended time for different values of Re? Also, my u,v results compared to Ghia's is about 5% difference. Is that acceptable? I'm using a 2nd order projection mtd. Thanks alot!

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