Which solver is best

cfolsom · February 8, 2010, 22:55

Hi everyone,

I am kind of new to OpenFOAM and CFD. I am trying to model the flow over a bullet. I have been trying to decide which solver would be best to use. I have been looking at rhoCentralFoam but it doesnt seem to do turbulent flow. I am not sure about that, but that is what I have been able to find so far. The other solver I have been looking at is sonicFoam. I am just not sure which one is best for the supersonic, turbulent flow of a bullet. I also need it to be able to capture the shock wave. Any help would be appreciated.

I am also trying to determine what kind of a boundary condition would be best. Currently I have set up a wedge with an inlet and an outlet, but I am not sure what kind would be best for the top. I have been looking at supersonicFreeStream, but I am not sure.

Thanks

cryple · April 5, 2013, 09:04

Concerning the question about the right solver for the job:
Check the following paper from 2012:

"High Speed Flow Simulation using OpenFoam"
http://www.cimec.org.ar/ojs/index.ph...load/4231/4157

It compares sonicFoam and rhoCentralFoam for some typical supersonic cofigurations like single wedge, diamond airfoil and symmetric blunt body...

Best
Daniel

February 8, 2010, 22:55	Which solver is best	#1
cfolsom New Member Join Date: Feb 2010 Posts: 1 Rep Power: 0	Hi everyone, I am kind of new to OpenFOAM and CFD. I am trying to model the flow over a bullet. I have been trying to decide which solver would be best to use. I have been looking at rhoCentralFoam but it doesnt seem to do turbulent flow. I am not sure about that, but that is what I have been able to find so far. The other solver I have been looking at is sonicFoam. I am just not sure which one is best for the supersonic, turbulent flow of a bullet. I also need it to be able to capture the shock wave. Any help would be appreciated. I am also trying to determine what kind of a boundary condition would be best. Currently I have set up a wedge with an inlet and an outlet, but I am not sure what kind would be best for the top. I have been looking at supersonicFreeStream, but I am not sure. Thanks

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April 5, 2013, 09:04		#2
cryple New Member Daniel Join Date: Nov 2012 Posts: 5 Rep Power: 14	Concerning the question about the right solver for the job: Check the following paper from 2012: "High Speed Flow Simulation using OpenFoam" http://www.cimec.org.ar/ojs/index.ph...load/4231/4157 It compares sonicFoam and rhoCentralFoam for some typical supersonic cofigurations like single wedge, diamond airfoil and symmetric blunt body... Best Daniel