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IDProjectCategoryView StatusLast Update
0000581OpenFOAM[All Projects] Bugpublic2012-07-11 15:29
ReporternogenmyrAssigned Touser21 
Status resolvedResolutionfixed 
PlatformLinuxOSCentOSOS Version5.4
Product Version 
Fixed in Version 
Summary0000581: 2.1.x chemistry->correct() significiantly slower
DescriptionWith the new implementation of the chemistry time advancement there is a significant slow down. In a test, it appears that the chemistry->correct() stage in reactingFoam is approx. 10 times slower than the #include chemistry.H in 2.0.x, though it appears that they perform essentially the same work. Settings for ode solver and other were identical.
Steps To ReproduceIn 2.1.x-06e2b3354a6c $FOAM_TUTORIALS/combustion/reactingFoam/ras/counterFlowFlame2D, change the resolution of mesh 10 times in both directions. Run with reactingFoam. First time step ~200 s on my machine.

Repeat in 2.0.x-03233a7696f0, with corresponding tutorial, resolution, and solver. First time step ~20 s on same machine.
TagsNo tags attached.



2012-07-11 15:29


We found a problem in the PaSR model which is used in this tutorial.
It is fixed in 2.1.x. If you pull from our repository you will get the fix.

Issue History

Date Modified Username Field Change
2012-07-11 14:20 nogenmyr New Issue
2012-07-11 15:29 user21 Note Added: 0001457
2012-07-11 15:29 user21 Status new => resolved
2012-07-11 15:29 user21 Resolution open => fixed
2012-07-11 15:29 user21 Assigned To => user21