lid-driven cavity using Matlab -- CFD Online Discussion Forums

November 16, 2010, 12:05		#15
Tanay New Member Tanay Deshpande Join Date: Aug 2010 Posts: 20 Rep Power: 15	Hello All, I'm trying to implement SIMPLE in Finite Volume method in driven-cavity flow using C++ in basic variables. Since the problem is steady state, I start out with u=0, v=0, p=0 for all interior nodes. This is causing the code to diverge away to infinity. For high viscosities, the divergence is less pronounced but u doesn't ever become negative in the results as it should. What may be the problem? Is it because I'm using unrelaxed pressure and velocity corrector equations? Thanks in advance.

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