Want top simulate the supersonic convergent and divergent nozzle


#1

want to do some experiments with nozzle can anyone tell me how to begin, how to take dimensions of CD nozzle


#2

Hi @mehakkar123, here’s a De Laval Nozzle Project from our Public Projects that might help you to get started.

https://www.simscale.com/projects/roozbehmousavi/de_laval_nozzle/

Any more thoughts @roozbehmousavi?


#3

Hi @AnnaFless @mehakkar123,
There are two solvers which are commonly used for simulating the compressible flows, including “rhoCentralFoam” and “sonicFoam”. The former is a density-based laminar solver and the latter is a pressure-based solver which can takes the effects of turbulence into account. The sonicFoam needs higher grid resolution to achieve the same accuracy and its pressure-based characteristics necessitates more iterations per time-step for the high-Mach number flows. Concerning the rhoCentralFoam, the quality of the grid has a huge influence on the solution stability.
Regards