wallHeatFlux utility and chtMultiRegionFoam solver

Lada · October 5, 2011, 07:29

I have run into problem using wallHeatFlux utility to obtain patches heat fluxes when applied to chtMultiRegionFoam solver. The message I am getting is:

--> FOAM FATAL IO ERROR:
cannot find file

file: /home/lada/OpenFOAM/lada-2.0.0/run/BALKON/balkon_svisle_1/constant/thermophysicalProperties at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 73.

Is there any way to solve this problem except for writing my own wallHeatFlux utility?

Tuxeedo · June 7, 2012, 09:10

Hey Vladimir,
did you find a Solution to your problem?

Lada · June 7, 2012, 09:50

I had to modify patchIntegrate or patchAverage or combine both of them to define a utility that would give me the heat fluxes. My model was a rather simple one (essentially heat conduction only) consisting of multiple solids with defined heat transfer coefficient and temperature at the outer surface.
And I wasn't able to get the fluxes via the wallHeatFlux utility.

Tuxeedo · June 7, 2012, 10:02

Thanks for your Reply.
Unfortunately i'm stuck on a coorporate installation where compiling self made tools is an enormous hassle.
I am surprised, that it is difficult to obtain wall heat Flux in a very simple incompressible steady state fluid solid system...

Lada · June 7, 2012, 10:46

Sadly, I'm not too skilled at modifying or writing my own codes as that one was my first one. I have slightly diverted my attention off the openFoam. I've tried looking up whether wallHeatFlux is applied within tutorials but no success. I'm sorry but I can't help you much.
I suppose asking you 'have you searched the forum here for anything related to your application' is rather silly.

October 5, 2011, 07:29	wallHeatFlux utility and chtMultiRegionFoam solver	#1
Lada New Member vladimir krejci Join Date: Mar 2009 Location: Czech Republic Posts: 20 Rep Power: 17	I have run into problem using wallHeatFlux utility to obtain patches heat fluxes when applied to chtMultiRegionFoam solver. The message I am getting is: --> FOAM FATAL IO ERROR: cannot find file file: /home/lada/OpenFOAM/lada-2.0.0/run/BALKON/balkon_svisle_1/constant/thermophysicalProperties at line 0. From function regIOobject::readStream() in file db/regIOobject/regIOobjectRead.C at line 73. Is there any way to solve this problem except for writing my own wallHeatFlux utility?

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June 7, 2012, 09:10		#2
Tuxeedo New Member Hauke Join Date: Jun 2012 Posts: 5 Rep Power: 14	Hey Vladimir, did you find a Solution to your problem?

June 7, 2012, 09:50		#3
Lada New Member vladimir krejci Join Date: Mar 2009 Location: Czech Republic Posts: 20 Rep Power: 17	I had to modify patchIntegrate or patchAverage or combine both of them to define a utility that would give me the heat fluxes. My model was a rather simple one (essentially heat conduction only) consisting of multiple solids with defined heat transfer coefficient and temperature at the outer surface. And I wasn't able to get the fluxes via the wallHeatFlux utility.

June 7, 2012, 10:02		#4
Tuxeedo New Member Hauke Join Date: Jun 2012 Posts: 5 Rep Power: 14	Thanks for your Reply. Unfortunately i'm stuck on a coorporate installation where compiling self made tools is an enormous hassle. I am surprised, that it is difficult to obtain wall heat Flux in a very simple incompressible steady state fluid solid system...

June 7, 2012, 10:46		#5
Lada New Member vladimir krejci Join Date: Mar 2009 Location: Czech Republic Posts: 20 Rep Power: 17	Sadly, I'm not too skilled at modifying or writing my own codes as that one was my first one. I have slightly diverted my attention off the openFoam. I've tried looking up whether wallHeatFlux is applied within tutorials but no success. I'm sorry but I can't help you much. I suppose asking you 'have you searched the forum here for anything related to your application' is rather silly.