interFoam inviscid and rotational
Hello,
Is it possible run interFoam inviscid but rotational (euler equations)? Thanks 
Consider using "twoPhaseEulerFoam". I have never used it myself other than running the tutorials for it, but it might be what you are looking for. I am interested in the use of it, but I need a dynamic mesh version of it for it to be useful for my purposes. There are a couple of tutorials that use it so you can probably look at the files for those to figure out the setup.

and what about to delete from interFoam scheme turbulence/viscous effects?. It is nonsense or i can try this weekend?

I suspect that it isn't as straight forward as setting the viscosity to zero since you have to contend with the effective viscosity of the turbulence model. I don't believe interFoam runs without the ras settings used. I don't believe it will cut your computation times down unless you can remove the turbulence parts of interFoam which would require altering the interFoam solver itself to eliminate the Reynolds stress term and if you are doing that you might as well remove the viscosity term too. You might be able to get it to run using the dummy turbulence model "laminar", but I think it would be easier to try the twoPhaseEulerFoam since it is a volume of fraction solver like interfoam, but it is solving the Euler equations instead of the full RANS. It comes in the standard 1.7.1 version and setting up the run should be straight forward.

My idea is build a new solver based in interFoam, so it is delete diffusive terms from UEqn.h and turbulence>correct(); from interFoam.
UEqn will be like; fvVectorMatrix UEqn ( fvm::ddt(rho, U) + fvm::div(rhoPhi, U) ); 
Hi Dave,
Now i have the inviscid working in multiphase, so it is more easy to see the influence of compression interface, momentumPredictor, corrections etc.... in the accurate and speed results. I want to implement trim&sink function, do you known if shipFoam is based in move the whole domain or mesh deformation? 
HI Pablo  Have you had success with your new inviscid solver? I am thinking of doing the same thing so I can solver twophase Euler eqns.
Betsy 
Yes, inviscid euler is pretty easy to implement, just remove the viscous terms from equations and turbulence.

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