compressible flow of water vapor
 

Hi all,

is there a possibility to solve the rhoPorousMRFLTPimpleFoam with steam (water vapor) as fluid ???? Or any other solver???
I don't want to simulate condensation or evaporation. Only the folw of vapor.

Some details about the simulation:
I want to simulate the flow of water vapor in a turbocharger. The pressure at the inlet is about 2.5 bar abs. and at the outlet 1 bar. The velocity in the turbocharger is about 200 m/s - 300 m/s (no supersonic).

At the moment I simulate it with air. But water vapor is rot a ideal gas.
Some ideas????

kind regards
Florian

Hi all,

I changed my thermophysicalProperties into the following:

FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object thermophysicalProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

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

mixture
{
specie
{
nMoles 1;
molWeight 18;
}
thermodynamics
{
Cp 2080;
Hf 0;
}
//for steam with p=1.75bar and T=150°C
transport
{
mu 1.414e-5;
Pr 0.985;
}
}

I'm not sure if this is a good way to simulate water vapor...
I am confused about the Hf (User Guide: heat of fusion). What is the heat of fusion for water vapor?????
What is this exactly??

kind regards
Florian

Hi all,

the results with this thermophysicalProperties looks reasonable for the density, pressure and temperature.

kind regards
Florian