RAS Model

gonsanobre · February 10, 2021, 12:23

Im doing a two mixing flow on intermixingfoam , it is a RAS model but when it runs, didn't solve any iteration and tells me that initial residual to pcorr is 0 and the final residual is 0 to...
I already searched a lot about this error but i couldn't be able to solve it, here is what the log file says :

No finite volume options present
GAMG: Solving for pcorr, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 0, global = 0, cumulative = 0

I would be greatful if someone could help me.
Thank you

HPE · February 10, 2021, 15:27

Hi,

Still difficult to diagnose the matter.

Could you please provide sufficient detail for us to understand your problem?

gonsanobre · February 11, 2021, 13:44

Ok it was resolved by using wall functions on Epsilon Kappa and nut variables, i think the problem was that because of not using wall functions on boundary conditions, it was having trouble solving the equations of k-e and nut ,
Thank you a lot for the reply!!!

February 10, 2021, 12:23	RAS Model	#1
gonsanobre New Member Gonçalo Ramos Nobre Join Date: Mar 2020 Posts: 4 Rep Power: 6	Im doing a two mixing flow on intermixingfoam , it is a RAS model but when it runs, didn't solve any iteration and tells me that initial residual to pcorr is 0 and the final residual is 0 to... I already searched a lot about this error but i couldn't be able to solve it, here is what the log file says : No finite volume options present GAMG: Solving for pcorr, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 0, global = 0, cumulative = 0 I would be greatful if someone could help me. Thank you

February 10, 2021, 15:27		#2
HPE Senior Member Herpes Free Engineer Join Date: Sep 2019 Location: The Home Under The Ground with the Lost Boys Posts: 932 Rep Power: 12	Hi, Still difficult to diagnose the matter. Could you please provide sufficient detail for us to understand your problem? __________________ The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror

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February 11, 2021, 13:44		#3
gonsanobre New Member Gonçalo Ramos Nobre Join Date: Mar 2020 Posts: 4 Rep Power: 6	Ok it was resolved by using wall functions on Epsilon Kappa and nut variables, i think the problem was that because of not using wall functions on boundary conditions, it was having trouble solving the equations of k-e and nut , Thank you a lot for the reply!!!