Hi, I am working with compressible Navier-Stokes equations and I want to compute forced compressible turbulence for Mach number <1..

I would like to have some suggestions or references about the choice of the forcing term. thanks in advance, christelle

I'm not sure of what you mean with "forced". Could you please clarify that?

Generally speaking you don't have a lot of compressibility effects on the turbulence for Mach numbers below 1. For flows below the hypersonic range (M ~< 3) you can usually neglect things like pressure dilatation, pressure work and pressure diffusion and just use "incompressible" turbulence models, provided you formulate them in a correct conservative formulation.

I'm working with turbulence modeling for supersonic flows (heat transfer in supersonic turbines, max Mach ~ 2), so I share your interest in compressible turbulence modeling.

I will clarify the point "forced compressible turbulence"

I want to compute a isotropic turbulence but not decaying in time . So I must add a forcing term in compressible Navier-Stokes equations to make the flow stationary.

I don't want to get by adding this term non physical compressible effects . The flow must stay incompressible (M<1) and I would like to know wich forcing term I could use to have these properties. thanks for responses. christelle