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IDProjectCategoryView StatusLast Update
0003462OpenFOAMBugpublic2020-03-05 09:10
Reporteradrien Assigned Tohenry  
PrioritynormalSeveritymajorReproducibilityalways
Status closedResolutionno change required 
PlatformLinuxOSCentOS Linux 7OS Version7.6.1810
Summary0003462: Inconsistency with functionObject wallHeatFlux
DescriptionI am simulating a combustion case with reactingFoam with openFOAM 7. For the boundary conditions on the temperature field, I am using "externalWallHeatFluxTemperature" in mode "flux" and I am taking into account the radiative heat flux (with a qrRelaxation).

I post-process the wallHeatFlux in runTime by putting the function object in the controlDict and also after runTime by using "reactingFoam -postProcess -func wallHeatFlux".

These two ways give me different results. I don't understand why and which one I should believe.

I don't believe that this discrepancy come from the radiative heat flux which is not taken into account in one of the postProcess.
Steps To Reproduce1) run reactingFoam with the wall Heat Flux function object in the controlDict
2) after the simulation completion, run reactingFoam -postProcess -func wallHeatFlux
3) compare the results between the post-processing during and after runTime.
Additional InformationYou can use this test case to see the problem
TagsNo tags attached.

Activities

adrien

2020-02-28 10:08

reporter  

henry

2020-02-28 10:57

manager   ~0011221

The wallHeatFlux functionObject is very simple and based on the wall temperature, it does not currently provide the same functionality as the externalWallHeatFluxTemperature BC.

henry

2020-03-05 09:10

manager   ~0011233

The wallHeatFlux functionObject could be updated to handle all the specific heat transfer BCs consistently but this would be complex and time consuming and requires funding.

Issue History

Date Modified Username Field Change
2020-02-28 10:08 adrien New Issue
2020-02-28 10:08 adrien File Added: simplified-SandiaD_LTS.tar.gz
2020-02-28 10:57 henry Note Added: 0011221
2020-03-05 09:10 henry Assigned To => henry
2020-03-05 09:10 henry Status new => closed
2020-03-05 09:10 henry Resolution open => no change required
2020-03-05 09:10 henry Note Added: 0011233