How to deduce the residual?
After 10000 interation or even 20000 , all my variables are below 1e -3 even 1e-5,but one variable--Y velocity is still a little above 1e-3. This value lasted for 10000 interations Anyone has ideas to decrease it?
Re: How to deduce the residual?
Then, as my personal point of view, it might be O.K. if other situation is consistent, for example, both of heat balance and material balance are O.K.
If you really want to decrease the residual to slightly lower value, just decrease underrelaxation parameters dramatically, e.g., 0.05, and do couple of iterations(10 iteration is enough, I think). But it is, I think, just a trick. The result is not changed so much.
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