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sampathevs June 7, 2013 00:47

Multiphase convergence problem
Hi all,

I am working on a case study- oil , gas water separator ( 3 phase flow).
Getting convergence problem with continuity residual.
can any1 help me ?
Using pressure based , eulerian model with energy equation.

Thanks in advance

vigii June 7, 2013 01:51


Once check all the values that are been defined to boundary conditions.

sampathevs June 7, 2013 05:21


boundary conditions are fine. even I am getting the results . But residuals are not converging. All my contour plots are matching with the case study results. But how to reach the convergence ?

oj.bulmer June 7, 2013 06:18

Have you explored if the flow is steady or transient?


RodriguezFatz June 7, 2013 06:49

Try coupled solver and reduce all relaxation factors & Courant number until solution converges.

oj.bulmer June 7, 2013 07:05

Multphase problems are tricky to model and often transient - especially when Eulerian models are used. Are you running steady or transient?


sampathevs June 7, 2013 11:45

Im running with steady. I gave heat transfer as well. But could not observe any changes .. :(

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