CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   New to Compressible Flow. thermophysicalProperties file (http://www.cfd-online.com/Forums/openfoam-solving/106389-new-compressible-flow-thermophysicalproperties-file.html)

JackW August 27, 2012 21:13

New to Compressible Flow. thermophysicalProperties file
 
Hi,

I am currently running a case, where I can no longer discount some effect of compressibility. Trouble is I have no experience of running anything compressible.

I am trying either rhoSimplecFoam or rhoSimpleFoam, thinking it would be a quick switch over from my current simpleFoam case. Unfortunately I have got a little stuck in the thermophysicalProperties file and what exactly to specify in 0/.

For some reason I only have a rhoSimplecFoam tutorial and no rhoSimpleFoam tutorial. I have looked for wikis etc on the algorithms but have found very little. Instead I am working from the squareBend tutorial

Firstly under specie I was not planning on changing anything from the squareBend as I assumed this would be for an ideal gas.

Secondly, I have NO idea what Hf, As and Ts are and I am assuming Cp is pressure coefficient, but I don't understand how you can specify this in the constant directory?

Any help/pointers/tips would be very much appreciated. Thank you very much

Jack

Chris Lucas August 30, 2012 03:02

Hi,

Cp --> Heat Capacity

As and Ts are model coefficients --> have a look at the sutherland model


Christian

JackW August 30, 2012 16:12

thanks!

Was really struggling to find documentation on the compressible models.

Jack


All times are GMT -4. The time now is 21:05.