|July 5, 2012, 09:51||
Where is the solve of UEqn in twoPhaseEulerFoam?
Join Date: May 2012
Location: Ames, IA, USA
Posts: 20Rep Power: 6
In the manual "Derivation, Modelling and Solution of the Conditionally Averaged Two-Phase Flow Equations" by Weller et al. they said that momentum equations are constructed and solved. But in the solver code of twoPhaseEulerFoam, I just see UaEqn.relax(), not solve(). So could anyone explain to me how about this issue? Thank you!
|July 8, 2012, 10:51||
Join Date: May 2009
Posts: 42Rep Power: 9
I think the momentum equation is not predicted and is only corrected in pressure loop which is conservative. (see pEqn.H)
|July 9, 2012, 02:13||
Join Date: Mar 2009
Location: Ames, Iowa, United States
Posts: 1,904Rep Power: 27
The momentum equation is defined (excluding some terms, which are transferred to the pressure equation), and the velocity is predicted with a single Jacobi step.
You could predict the velocity with a direct solution, including the transferred term by means of the reconstruct operator, however this might slow convergence down.
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