View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001152 | OpenFOAM | Bug | public | 2014-02-08 11:33 | 2014-02-18 09:01 |
| Reporter | Assigned To | will | |||
| Priority | immediate | Severity | crash | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Platform | Linux | OS | Red Hat | OS Version | 4.1.2 |
| Summary | 0001152: settlingFoam crash no matter parallel or non-parallel | ||||
| Description | I have built a case with settlingFoam in open channel and succeeded to implement settlingFoam with upstream velocity U=0.01m/s. But when I increase velocity to 0.1m/s and then decrease deltaT to 1/10 of original value with other parameters unchanged, settlingFoam crash only in a few steps. The error are: [4] --> FOAM FATAL IO ERROR: [4] wrong token type - expected Scalar, found on line 6 the word 'nan' [4] [4] file: /work/jchb_work/tryCase3/processor4/system/data.solverPerformance.p_rgh at line 6. [4] [4] From function operator>>(Istream&, Scalar&) [4] in file lnInclude/Scalar.C at line 91. [4] FOAM parallel run exiting and | ||||
| Steps To Reproduce | Download the attached file, unzip it. and run it with settlingFoam, it will crash. But when you change velocityinlet value in file U in folder 0 to 0.01, and increase the deltaT in system/controlDict to 0.005, it can run correctly. | ||||
| Tags | No tags attached. | ||||
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2014-02-08 11:33
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I don't think this is a bug. The case diverges due to the setup. Try the usual stability tricks; switch to upwind schemes, improve the mesh, ramp the velocity at the start, etc... |
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Thank you, Will |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-02-08 11:33 |
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New Issue | |
| 2014-02-08 11:33 |
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File Added: settlingFoamTry.rar | |
| 2014-02-17 17:33 | will | Note Added: 0002822 | |
| 2014-02-17 17:33 | will | Note Edited: 0002822 | |
| 2014-02-18 07:21 |
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Note Added: 0002825 | |
| 2014-02-18 09:01 | will | Status | new => resolved |
| 2014-02-18 09:01 | will | Resolution | open => fixed |
| 2014-02-18 09:01 | will | Assigned To | => will |
