[ricx]

Hello everyone, I am new to this forum. I am trying to simulate a twophase pipe flow, which is the best solver to use. Ideally I would like to have compressible solver with one phase dispersed in the other. The problem is that with twophaseeulerfoam I am not able to arrive to convergence. Any suggestions?

[humber11]

I believe that 'twophaseEulerFoam' is recommended for this, but there is also 'compressibleInterFoam'.

A list of how solvers work:
https://www.openfoam.com/documentati...ommand%20line.

[joshwilliams]

For dispersed two-phase flows, you could use a Lagrangian approach. One suitable solver appears to be sprayFoam, which has a compressible transport model for the fluid. I guess it will account for chemical reactions and species transport, but these could probably be turned off.


For Eulerian approach you could use twoPhaseEulerFoam which is described as "Solver for a system of two compressible fluid phases with one dispersed phase"

[joshwilliams]

Originally Posted by humber11

I believe that 'twophaseEulerFoam' is recommended for this, but there is also 'compressibleInterFoam'.

A list of how solvers work:
https://www.openfoam.com/documentati...ommand%20line.

I would not recommend an interFoam based solver. It is very computationally expensive to resolve the interface between phases, and from my experience it can cause difficulties in converging the continuity error.