[seanmike31]

Hi everybody,
I need to simulate a compressible flow using redlich kwong state equation. I know that the solver rhoPisoFoam calls basicPsithermo.H. I have on src/thermophycalModels/basic/psithermo libraries of realGasEthermo and realGasHthermo. In this case, I need to use realGasEthermo in. The tutorial pitzDaily has thermophysicalproperties, like this :

thermoType hPsiThermo<pureMixture<constTransport<specieThermo <hConstThermo<perfectGas>>>>>;

and I change it to this :


/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM Extend Project: Open Source CFD |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.extend-project.de |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object thermophysicalProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

thermoType realGasEThermo<pureMixture<constTransport<realGasS pecieThermo<nasaHeatCapacityPolynomial<redlichKwon g>>>>>;

mixture air 1 28.9 1000 0 1.8e-05 0.7;

// ************************************************** *********************** //


I change the thermophysicalModels from sourceforge and I compiled it. And now when I run this I have this error :

--> FOAM FATAL IO ERROR:
attempt to read beyond EOF

file: /home/paul-maurice/Desktop/rhoPisoFoam/les/pitzDaily2/constant/thermophysicalProperties::mixture at line 20.

From function ITstream::read(token& t)
in file db/IOstreams/Tstreams/ITstream.C at line 84.

FOAM exiting


I have really no idea how to fix it, if someone have an idea.

[rewol]

I am currently trying to edit eos to use redlich-kwong. If you could tell me where you started to implement R-K eos, i'd be able to help if i figure it out.

I am trying to use R-K with reacting foam.

[seanmike31]

Hi, I set up the "real gas foam", it's an extension made by foam-extended group, this the link on sourceforge.
http://sourceforge.net/p/openfoam-ex...Thermo/~/tree/

Just click on download the snapshot. The real gas foam is the OpenFOAM-1.6-ext, so when you'll install it in your bashrc file precise this alias.

I guess you can add the real gas libraries in your src folder in thermophysical models and after compile it.

I don't work with reactingFoam but with sonicFoam, so I guess this is the only help I can provide to you about this.

[rewol]

Well i am using OpenFOAM 2.4 currently, do you think it is compatible?

And how do i compile the once i downloaded the files?

[seanmike31]

You should replace the thermophysical models folder by the thermophysical models of real gas foam and after execute the Allwmake file in this folder.

[rewol]

I did as you said and compiled the thermophysical models.Now i need to test my R-K eos somehow.As soon as i use the real gas eos, i will post here and let you know my results.

I will also try to solve the tutorial you mentioned and post the results.