View Issue Details
ID | Project | Category | View Status | Date Submitted | Last Update |
---|---|---|---|---|---|
0002530 | OpenFOAM | Bug | public | 2017-04-20 13:24 | 2017-10-27 17:05 |
Reporter | pilschka | Assigned To | henry | ||
Priority | normal | Severity | crash | Reproducibility | sometimes |
Status | closed | Resolution | fixed | ||
Platform | GNU/Linux | OS | Debian | OS Version | 8 |
Summary | 0002530: floating point exception due to high negative Min(alpha.water) in compressibleInterDyMFoam after restart from latestTime | ||||
Description | I've got 2D case where a heated paddle is oscillating. When I start from 0 folder everything works fine. E.g. when endTime = 1 the simulation stops at 1s. But if I want to start at 1s the simulation crashes with floating point exception error at the first calculation step. In the log file very high values for Min(alpha.water) and Min(alpha.air) occur. Write in binary format or lower the CFL number doesn't work. start with mesh motion (compressibleInterFoam) does work. In the Attached Example the writing interval is set to 0.02 and stops at 0.04. So one can see that restarting at 0.02 is possible but at 0.04 it isn't. The mesh might be bigger as a usual test case. sorry for that, but I couldn't reproduce the error with smaller meshes. Or when only using blockMesh the following error occurred. (https://www.cfd-online.com/Forums/openfoam-solving/182819-error-caused-unexpected-mesh-displacement-openfoam.html) sketch of the geometry: ______________ | | | <--> | | || | y^ | || air | | /z | || | | / | || | |/ |.....||.....| |-------> x | || | | || | | || | | water| |____________| | ||||
Steps To Reproduce | - open case folder - decompose 0 folder - start compressibleInterDyMFoam (takes about 15 min with 2 cpu's) - reconstruct all time folders - try to start from latest time folder (0.04) ---> should crash - rename 0.04 folder and start from 0.02 - start from latestTime (0.02) ---> should work | ||||
Tags | No tags attached. | ||||
Date Modified | Username | Field | Change |
---|---|---|---|
2017-04-20 13:24 | pilschka | New Issue | |
2017-04-20 13:24 | pilschka | File Added: Bug_report_restart_CompressibleInterDyMFoam.tar.gz | |
2017-04-20 13:42 | henry | Priority | high => normal |
2017-10-27 17:05 | henry | Assigned To | => henry |
2017-10-27 17:05 | henry | Status | new => closed |
2017-10-27 17:05 | henry | Resolution | open => fixed |
2017-10-27 17:05 | henry | Note Added: 0008947 |