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January 9, 2013, 13:59 |
an error on PBiCG
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#1 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
its strange.why rhoPimpleFoam shows an error on its default solver as I copied?U and others are not symmetric but why openFoam wants a symmetric matrix solver?please submit your idea.thanks.
Code:
Starting time loop Mean and max Courant Numbers = 0.1422220012 0.5709693515 deltaT = 9.807881957e-09 Time = 9.80788e-09 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUx, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUy, Initial residual = 0, Final residual = 0, No Iterations 0 --> FOAM FATAL IO ERROR: Unknown symmetric matrix solver PBiCG Valid symmetric matrix solvers are : 4 ( GAMG ICCG PCG smoothSolver ) file: /home/thesis/Desktop/WR_Pimple/system/fvSolution::solvers::(U|h|R|k|epsilon|omega) from line 43 to line 46. From function lduMatrix::solver::New in file matrices/lduMatrix/lduMatrix/lduMatrixSolver.C at line 77. Code:
solvers { p { solver PCG; preconditioner DIC; tolerance 1e-06; relTol 0; } pFinal { $p; relTol 0; } "rho.*" { $p; tolerance 1e-05; relTol 0; } "(U|h|R|k|epsilon|omega)" { solver PBiCG; preconditioner DILU; tolerance 1e-05; relTol 0; } "(U|h|R|k|epsilon|omega)Final" { $U; relTol 0; } } PIMPLE { momentumPredictor yes; nOuterCorrectors 1; nCorrectors 2; nNonOrthogonalCorrectors 0; rhoMin rhoMin [ 1 -3 0 0 0 ] 0.5; rhoMax rhoMax [ 1 -3 0 0 0 ] 2.0; } |
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January 9, 2013, 14:16 |
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#2 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
very strange behaviour of openFoam.when I changed it the error became reciprocal:
Code:
Selecting turbulence model type RASModel Selecting RAS turbulence model kOmegaSST kOmegaSSTCoeffs { alphaK1 0.85034; alphaK2 1; alphaOmega1 0.5; alphaOmega2 0.85616; Prt 1; gamma1 0.5532; gamma2 0.4403; beta1 0.075; beta2 0.0828; betaStar 0.09; a1 0.31; c1 10; } Reading thermophysicalProperties Starting time loop Mean and max Courant Numbers = 0.1422220012 0.5709693515 deltaT = 9.807881957e-09 Time = 9.80788e-09 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUx, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUy, Initial residual = 0, Final residual = 0, No Iterations 0 DICPCG: Solving for Ux, Initial residual = 0.001234410983, Final residual = 1.598743971e-09, No Iterations 1 DICPCG: Solving for Uy, Initial residual = 0.9999999996, Final residual = 4.396979854e-07, No Iterations 1 diagonal: Solving for rhoE, Initial residual = 0, Final residual = 0, No Iterations 0 swak4Foam: Allocating new repository for sampledGlobalVariables DICPCG: Solving for e, Initial residual = 0.001547344897, Final residual = 2.015913876e-09, No Iterations 1 --> FOAM FATAL IO ERROR: Unknown asymmetric matrix solver PCG Valid asymmetric matrix solvers are : 4 ( BICCG GAMG PBiCG smoothSolver ) file: /home/thesis/Desktop/WR_Pimple/system/fvSolution::solvers::(U|e|h|R|k|epsilon|omega) from line 43 to line 46. From function lduMatrix::solver::New in file matrices/lduMatrix/lduMatrix/lduMatrixSolver.C at line 106. FOAM exiting thesis@thesis-X58A-UD7:~/Desktop/WR_Pimple$ rhoCentralFoam | tee log /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.1.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : 2.1.0-0bc225064152 Exec : rhoCentralFoam Date : Feb 09 2012 Time : 21:41:49 Host : "thesis-X58A-UD7" PID : 6985 Case : /home/thesis/Desktop/WR_Pimple nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster allowSystemOperations : Disallowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 Reading thermophysical properties Selecting thermodynamics package ePsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>> Reading field U Creating turbulence model Selecting turbulence model type RASModel Selecting RAS turbulence model kOmegaSST kOmegaSSTCoeffs { alphaK1 0.85034; alphaK2 1; alphaOmega1 0.5; alphaOmega2 0.85616; Prt 1; gamma1 0.5532; gamma2 0.4403; beta1 0.075; beta2 0.0828; betaStar 0.09; a1 0.31; c1 10; } Reading thermophysicalProperties Starting time loop Mean and max Courant Numbers = 0.1422220012 0.5709693515 deltaT = 9.807881957e-09 Time = 9.80788e-09 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUx, Initial residual = 0, Final residual = 0, No Iterations 0 diagonal: Solving for rhoUy, Initial residual = 0, Final residual = 0, No Iterations 0 --> FOAM FATAL IO ERROR: Unknown symmetric matrix solver PBiCG Valid symmetric matrix solvers are : 4 ( GAMG ICCG PCG smoothSolver ) file: /home/thesis/Desktop/WR_Pimple/system/fvSolution::solvers::(U|e|h|R|k|epsilon|omega) from line 43 to line 46. From function lduMatrix::solver::New in file matrices/lduMatrix/lduMatrix/lduMatrixSolver.C at line 77. FOAM exiting Last edited by wyldckat; December 12, 2013 at 18:01. Reason: Fixed broken [CODE][/CODE] |
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December 12, 2013, 06:17 |
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#3 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Ehsan,
I got the same error that you posted above. Do you know how to solve it? Regards |
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December 12, 2013, 09:21 |
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#4 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
Hi Maimouna,
how are you? I remember the issue but not sure what was the origin,I think I had copied fvSolution of another solver return of rhoPimpleFoam and it didn't match to rhoPimpleFoam, if you can send your fvSolution dictionary maybe I remember what was the cause exactly.
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Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. |
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December 12, 2013, 09:35 |
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#5 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Ehsan,
many thanks for your reply. I'm good. I attached the case that I'm working. Many thanks |
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December 28, 2013, 14:25 |
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#6 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
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FYI: Maimouna's case is being addressed on this thread: http://www.cfd-online.com/Forums/ope...hron-case.html
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December 28, 2013, 18:43 |
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#7 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
Hi dear Maimouna,
sorry I haven't had time for looking into the case,have you found the source of the issue?
__________________
Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. |
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December 30, 2013, 07:39 |
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#8 |
Senior Member
ok
Join Date: Oct 2013
Posts: 346
Rep Power: 13 |
Dear Ehsan,
thank you for your reply. I still searching for the source of the issue. |
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