[quarkz]

Hi,

I'm trying to model a shock tube which consists of the driver and driven area. The driver and driven area contains helium at high pressure and nitrogen at low pressure respectively. They are separated by a diaphragm, which will rupture at t=0. This is a high speed flow problem with speed reaching 4-5 mach no.

So which solver should I use? I was previously using rhoCentralFoam but can I make it work with 2 gases, assuming no reaction at the moment.

I read thru the forum and some suggested rhoReactingFoam or rhoPimpleFoam.

cfdvenkatesh suggested :

"You could use Species Transport model to simulate mixing of 2 different gases. If your application is not IC engine related, I would suggest to use General Species Transport.
In the inlets you can specify the mass fractions for the gases you like."

So which is the more appropriate solver to use?

Thanks!