dbnsfoam solver

rkpk · March 24, 2019, 06:12

Hi guyz,

I had simulated a 2D CD nozzle inviscid flow with rhoCentralFoam for supersonic flow and shockWave in diverging section and results were validated with Ansys Fluent.

Now want to run the same case using dbnsfoam but the problem is,

The results for supersonic condition from dbnsfoam is not same as rhoCentralFoam.

And the solver is blowing off (i.e after few iteration it gives Floating point exception error) while run the case of shockWave.

Can any one please help me with this???

ano · July 8, 2019, 13:34

Did you try to change the flux schemes? Which one are you using in dbnsFoam?

March 24, 2019, 06:12	dbnsfoam solver	#1
rkpk New Member Tejas Join Date: Dec 2018 Posts: 4 Rep Power: 7	Hi guyz, I had simulated a 2D CD nozzle inviscid flow with rhoCentralFoam for supersonic flow and shockWave in diverging section and results were validated with Ansys Fluent. Now want to run the same case using dbnsfoam but the problem is, The results for supersonic condition from dbnsfoam is not same as rhoCentralFoam. And the solver is blowing off (i.e after few iteration it gives Floating point exception error) while run the case of shockWave. Can any one please help me with this???

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July 8, 2019, 13:34		#2
ano Member ano Join Date: Jan 2017 Location: Delft Posts: 58 Rep Power: 10	Did you try to change the flux schemes? Which one are you using in dbnsFoam?