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March 31, 2009, 08:02 |
Continuity problems
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#1 |
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Join Date: Mar 2009
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I have a convergence problem with the continuity. Everything has converged easily except this. I use segregated ske model. DPM also exists.
I checked the fluxes of materials and difference of in/out is 0.1% compare to the total flow. The residual is 2.44*10^-2. Is it cause by this small difference |
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March 31, 2009, 08:29 |
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#2 |
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hello
do have a real divergence on continuity, or you just think you have a problem because of the residual values? To my mind, 10^-2 isn't so bad in free convection case for example... do you plot some surfaces values during the computation? is the a stabilisation of these values? Regards |
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March 31, 2009, 09:35 |
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#3 | |
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Quote:
The stabilization is good. I had some instability problem with epsilon but grid adaptation and lower urf solved it. You are right, I also have free convection in my system, but not only free convection... Maybe it is caused by free convection. The temperature surfaces show reasonably good results. |
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