Steady solver for high-transonic flows

tom.opt · June 13, 2020, 10:13

Hi all,
I was wondering if there's any solver in the Openfoam framework that is suited for transonic flows where Mach number is 0.95-1.3;
I have tried rhoSimpleFoam with transonic option but it proved to be unreliable and often unexplainably crash.

Running transient solvers is not an option as I do not have to computational power required for my problem.
I'm simulating an aircraft that's 10m in length and the computational domain is 100m in each direction.

klausb · June 15, 2020, 20:20

Hi,

many factors influence stability - it's difficult to help without information:

What's your case setup? fvSchemes, fvSolution

What kind of mesh do you use?

Do you have any idea of the mesh quality?

What's the mesh size?

What hardware do you use: CPU, GPU, RAM?

Klaus

June 13, 2020, 10:13	Steady solver for high-transonic flows	#1
tom.opt Member Tom Join Date: Apr 2017 Posts: 50 Rep Power: 8	Hi all, I was wondering if there's any solver in the Openfoam framework that is suited for transonic flows where Mach number is 0.95-1.3; I have tried rhoSimpleFoam with transonic option but it proved to be unreliable and often unexplainably crash. Running transient solvers is not an option as I do not have to computational power required for my problem. I'm simulating an aircraft that's 10m in length and the computational domain is 100m in each direction.

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June 15, 2020, 20:20		#2
klausb Senior Member Klaus Join Date: Mar 2009 Posts: 250 Rep Power: 22	Hi, many factors influence stability - it's difficult to help without information: What's your case setup? fvSchemes, fvSolution What kind of mesh do you use? Do you have any idea of the mesh quality? What's the mesh size? What hardware do you use: CPU, GPU, RAM? Klaus