[anon_a]

Hello

In the next months, I will attempt to write a hybrid DSMC-NS solver in OpenFOAM.
The problem at hand is a time-dependent expansion of a gas from atmospheric conditions to vacuum. I don't see any way to treat all Knudsen regimes (10^-6 up to 10^4) other than a hybrid code.

Thus, I have the following questions:
i) First of all, is that even possible? :-D
ii) Does anyone foresee any possible difficulties, something to be extra careful about?
iii) Which NS solver would be more suitable for the simulation of transonic and supersonic flows?
iv) Is there another modeling possibility?

Regards
S.P.