Residuals problem -- CFD Online Discussion Forums

May 4, 2004, 03:05	Residuals problem	#1
steph Guest Posts: n/a	Hello everybody!!! I have a problem with the continuity's residual convergence.I use the k-epsilon realizable model and I have about 17000 cells. The calculation converges very well at the beginning of the calculation but just before the half of the calculation, the continuity's residual gets instable and doesn't converge. For information, the under-relaxation factor for pressure is 0.3 and 0.7 for the momentum.I have 200 time steps of 5e-4 seconds and 1000 iterations per time step. If anybody has an idea, he will be welcome. Thanks!!

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