View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0002496 | OpenFOAM | Bug | public | 2017-03-13 01:51 | 2017-03-13 18:12 |
| Reporter | AMRBlack | Assigned To | henry | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | resolved | Resolution | fixed | ||
| Platform | GNU/Linux | OS | Ubuntu | OS Version | 15.04 |
| Summary | 0002496: Sign of coefficient for RDT-based compression term used in some k-epsilon based models may be reversed | ||||
| Description | When check the RDT-based compression term used kEpsilon, RNGkEpsilon and LaunderSharmaKE model, I found that the sign of C3 may be reversed by accident. Please check it. ref: EL TAHRY, S. (1983). k-epsilon equation for compressible reciprocating engine flows. Journal of Energy, 7(4), 345-353. | ||||
| Tags | turbulence models | ||||
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Thanks for the bug-report. Yes an inconsistency has crept in between the definition/implementation of the "C3" dilatation term and the default value of the coefficient. This is now fixed in OpenFOAM-dev: commit 76213ac30147e5d63d63354b41d9e4ffcdef2392 OpenFOAM-4.x: commit 7d5fe2f3d93f93b47428a31af71ee0256c4ec5da turbulenceModels::RAS: Corrected sign of "C3" dilatation term Set default value of C3 to 0 Set C3 to -0.33 in the engineFoam/kivaTest tutorial. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2017-03-13 01:51 | AMRBlack | New Issue | |
| 2017-03-13 01:51 | AMRBlack | Tag Attached: turbulence models | |
| 2017-03-13 18:12 | henry | Assigned To | => henry |
| 2017-03-13 18:12 | henry | Status | new => resolved |
| 2017-03-13 18:12 | henry | Resolution | open => fixed |
| 2017-03-13 18:12 | henry | Note Added: 0007923 |
