|
[Sponsors] |
[foam-extend.org] simpleFoam examples crush in foam-extend-5.0 |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
Member
Join Date: Feb 2014
Posts: 32
Rep Power: 11 ![]() |
Hi all,
I have installed foam-extend-5.0 on ubuntu 22.04 either with the .deb file, or compiled from sources (git branch 73c2a3d539c20e6b97cd625d5d79fb7f78149f5b) The simpleFoam tutorials crush - I have tested motorbike, and pitzDaily. The simpleFoam of the pimpleDynMFoam in the wingMotion tutorial also crushes. I have attached below the output of the pitzDaily. To run it: >> blockMesh >> simpleFoam It crushes very fast. Any ideas? /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | foam-extend: Open Source CFD | | \\ / O peration | Version: 5.0 | | \\ / A nd | Web: http://www.foam-extend.org | | \\/ M anipulation | For copyright notice see file Copyright | \*---------------------------------------------------------------------------*/ Build : 5.0-73c2a3d539c2 Exec : simpleFoam Date : Feb 21 2023 Time : 19:58:56 Host : "lt-yehudaa" PID : 658991 CtrlDict : "/home/yehudaa/Projects/2023/foamExtendTutorials/simpleFoam/pitzDaily/system/controlDict" Case : /home/yehudaa/Projects/2023/foamExtendTutorials/simpleFoam/pitzDaily nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). allowSystemOperations : Disallowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 SIMPLE: convergence criteria field p tolerance 0.0001 field U tolerance 0.0001 field "(k|epsilon)" tolerance 0.0001 Reading field p Reading field U Reading/calculating face flux field phi Selecting incompressible transport model Newtonian Selecting RAS turbulence model kEpsilon kEpsilonCoeffs { Cmu 0.09; C1 1.44; C2 1.92; alphaEps 0.76923; sigmaEps 1.3; } Starting time loop Time = 1 BiCGStab: Solving for Ux, Initial residual = 1, Final residual = 0.00464911, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.00960309, No Iterations 163 time step continuity errors : sum local = 0.475961, global = -0.00434833, cumulative = -0.00434833 BiCGStab: Solving for epsilon, Initial residual = 0.594985, Final residual = 0.00495, No Iterations 1 BiCGStab: Solving for k, Initial residual = 1, Final residual = 0.0031536, No Iterations 1 ExecutionTime = 0.07 s ClockTime = 0 s Time = 2 BiCGStab: Solving for Ux, Initial residual = 0.561136, Final residual = 0.00840767, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 0.980401, Final residual = 0.0158018, No Iterations 1 DICPCG: Solving for p, Initial residual = 0.905008, Final residual = 0.00863013, No Iterations 57 time step continuity errors : sum local = 27.5255, global = 2.94505, cumulative = 2.9407 BiCGStab: Solving for epsilon, Initial residual = 0.999276, Final residual = 0.00800445, No Iterations 1 BiCGStab: Solving for k, Initial residual = 0.996406, Final residual = 0.000380816, No Iterations 1 ExecutionTime = 0.09 s ClockTime = 0 s Time = 3 BiCGStab: Solving for Ux, Initial residual = 0.516662, Final residual = 0.00621829, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 0.998397, Final residual = 0.0176732, No Iterations 1 DICPCG: Solving for p, Initial residual = 0.999941, Final residual = 0.0089741, No Iterations 19 time step continuity errors : sum local = 53029.6, global = -41.905, cumulative = -38.9643 BiCGStab: Solving for epsilon, Initial residual = 1, Final residual = 0.00122703, No Iterations 1 BiCGStab: Solving for k, Initial residual = 0.999998, Final residual = 0.00573344, No Iterations 1 ExecutionTime = 0.09 s ClockTime = 0 s Time = 4 BiCGStab: Solving for Ux, Initial residual = 0.550045, Final residual = 0.0056509, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 0.999997, Final residual = 0.0160376, No Iterations 1 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.00862799, No Iterations 58 time step continuity errors : sum local = 5.33155e+10, global = -1.23755e+08, cumulative = -1.23755e+08 BiCGStab: Solving for epsilon, Initial residual = 0.999972, Final residual = 0.00643736, No Iterations 1 BiCGStab: Solving for k, Initial residual = 0.999955, Final residual = 0.002415, No Iterations 1 ExecutionTime = 0.11 s ClockTime = 0 s Time = 5 BiCGStab: Solving for Ux, Initial residual = 0.421288, Final residual = 0.00214245, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 1, Final residual = 0.00222639, No Iterations 1 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.00733539, No Iterations 133 time step continuity errors : sum local = 1.12466e+19, global = 1.96772e+15, cumulative = 1.96772e+15 BiCGStab: Solving for epsilon, Initial residual = 0.999994, Final residual = 0.000797934, No Iterations 1 BiCGStab: Solving for k, Initial residual = 0.999988, Final residual = 0.0591909, No Iterations 1 ExecutionTime = 0.13 s ClockTime = 0 s Time = 6 BiCGStab: Solving for Ux, Initial residual = 0.525405, Final residual = 0.00822925, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 1, Final residual = 0.059309, No Iterations 1 DICPCG: Solving for p, Initial residual = 1, Final residual = 0.00503789, No Iterations 5 time step continuity errors : sum local = 3.055e+39, global = 3.65535e+27, cumulative = 3.65535e+27 BiCGStab: Solving for epsilon, Initial residual = 1, Final residual = 0.000516864, No Iterations 1 BiCGStab: Solving for k, Initial residual = 1, Final residual = 2.5594e-09, No Iterations 1 ExecutionTime = 0.14 s ClockTime = 0 s Time = 7 BiCGStab: Solving for Ux, Initial residual = 0.699943, Final residual = 4.29177e-11, No Iterations 1 BiCGStab: Solving for Uy, Initial residual = 1, Final residual = 0.0335931, No Iterations 1 DICPCG: Solving for p, Initial residual = 1, Final residual = 2.86737e-09, No Iterations 2 time step continuity errors : sum local = 1.02702e+68, global = -2.47902e+51, cumulative = -2.47902e+51 Floating point exception (core dumped) |
|
![]() |
![]() |
![]() |
![]() |
#2 |
New Member
Join Date: Jan 2023
Posts: 10
Rep Power: 2 ![]() |
I also am experiencing this. Were you able to solve it?
|
|
![]() |
![]() |
![]() |
![]() |
#3 |
Member
Amirhossein Taran
Join Date: Sep 2016
Location: Dublin, Ireland
Posts: 42
Rep Power: 9 ![]() |
Hello,
Did you follow the instructions in Allrun file ? especially for motorbike case, you need to use snappyHexMesh in order to create your geometry. Make sure to execute Allrun file by ./Allrun Bests, Amirhossein. |
|
![]() |
![]() |
![]() |
![]() |
#4 |
New Member
Petar T
Join Date: Jul 2018
Posts: 1
Rep Power: 0 ![]() |
I experience same problem, the pitzDaily crashes at 7th iteration, other solvers also fave similar problems. I noticed that all solvers have poor convergence it may be that there is a problem with numerical schemes. Does anyone has answer to this?
Update: running with openfoam2306 it converges successfully. It seems that the solver itself is broken. |
|
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
[blockMesh] mergePatchPairs problem when using two master and slave combination | Ali_Sh | OpenFOAM Meshing & Mesh Conversion | 0 | September 22, 2021 09:35 |
[snappyHexMesh] Invalid Normals for source face to target face while making AMI? | Sorabh | OpenFOAM Meshing & Mesh Conversion | 1 | August 3, 2021 06:35 |
InterDyMFoam+simpleFunctionObject | Elham | OpenFOAM Running, Solving & CFD | 5 | July 10, 2017 11:59 |
[snappyHexMesh] How to define to right point for locationInMesh | Mirage12 | OpenFOAM Meshing & Mesh Conversion | 7 | March 13, 2016 14:07 |
[blockMesh] non-orthogonal faces and incorrect orientation? | nennbs | OpenFOAM Meshing & Mesh Conversion | 7 | April 17, 2013 05:42 |