[hamsteri15]

I'm trying to use the rhoSimpleFoam to solve flat plate flow for a laminar case just to demonstrate the differences in setting up compressible and incompressible cases. I was able to do this quite easily with version 1.7 just by switching off the turbulence model but the version 3.0.1 searches for the 'RAS' section from 'turbulenceProperties' although 'simulationType' is set to laminar.

I assume I can overcome this problem just by setting turbulence off under 'RAS' but this is quite annoying since I still have to specify initial values, solvers etc. for some turbulence model. Am I doing something wrong or is this a bug in the code?

Here's some files for you:

working 'turbulenceProperties' file
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

simulationType laminar;

RAS
{
//the solver looks for these values even though it shouldn't
RASModel kEpsilon;

turbulence off;

printCoeffs on;
}


'turbulenceProperties' file that doesn't work
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

simulationType laminar;

[martel]

I am having the same problem with laminar simulation with rhoSimpleFoam. Have you had any progress on this?
Thanks in advance for your help
--Carlos

[hamsteri15]

Originally Posted by martel

I am having the same problem with laminar simulation with rhoSimpleFoam. Have you had any progress on this?
Thanks in advance for your help
--Carlos

I ended up running the simulation using a k-epsilon model with small initial values for the turbulence and specifying turbulence 'off' under RAS. The results were exactly the same as the 'laminar' model in version 1.7 for a flat plate flow.

[martel]

Thanks hamsteri15!