Steady solver for high-transonic flows

tom.opt · June 13, 2020, 11:13

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, 21:20

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, 11:13	Steady solver for high-transonic flows	#1
tom.opt Member Tom Join Date: Apr 2017 Posts: 50 Rep Power: 9	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.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
foam-extend-4.1 release	hjasak	OpenFOAM Announcements from Other Sources	19	July 16, 2021 06:02
[ANSYS Meshing] Help with element size	sandri_92	ANSYS Meshing & Geometry	14	November 14, 2018 08:54
fluent divergence for no reason	sufjanst	FLUENT	2	March 23, 2016 17:08
steady solver in openfoam!!	milad653279	OpenFOAM Running, Solving & CFD	3	December 6, 2015 08:56
TUI Transient solver to Steady solver	mbell10	FLUENT	1	February 2, 2011 09:53

June 15, 2020, 21:20		#2
klausb Senior Member Klaus Join Date: Mar 2009 Posts: 281 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