using heat flux BC on wall in openFOAM 6

ravik21 · August 4, 2018, 14:57

Hi Foamers,

I was using openFOAM 2.3.1 for a internal hvac problem. I was able to provide heat flux BC
on surfaces using turbulentHeatFluxTemperature BC.
But in openFOAM 6 this BC is no longer supported. What is the alternative for this BC in OF6 ?
I am shifting from OF2.3.1 to 6 because I want to use externalWallHeatFluxTemperature BC
for giving HTC and external temperature on external walls. This is not possible in OF2.3.1

I saw some threads: wallHeatFlux utility for an incompressible case
but didn't got any answer related to OF6.
It looks like there is an utility to do this : wallheatflux-utility, but I want to know what is the native option in OF6 itself.

Thanks,
Ravi

sandeep.pandey · August 5, 2018, 10:58

Hi Ravi,

I had the same issue while upgraded to OpenFOAM 5.x with

Code:

compressible::turbulentHeatFluxTemperature;

Then, I took the same BC from the old version of OpenFOAM and compiled it by myself for OpenFOAM 5.x. As an example, I am attaching my BC for OpenFOAM 5.x (myturbulentHeatFluxTemperature.zip). Compile it as usual by

Code:

wclean

and

Code:

wmake

It worked fine for me, you can try with OpenFOAM 6.

Bests,
Sandeep

ravik21 · August 5, 2018, 15:01

Thanks a lot Sandeep.
I will compile it with openFOAM 6 and will check if it works with OF6 or not.

But I wonder why it was removed in newer versions, there is absolutely no
other alternate boundary condition for turbulentHeatFluxTemperature ?

If really there is no native alternative then it should be added back, because its a frequently required BC for thermal simulations.

Ravi

calf.Z · January 14, 2019, 21:21

I think turbulentHeatFluxTemperature BC is replaced by externalWallHeatFluxTemperature ?

August 4, 2018, 14:57	using heat flux BC on wall in openFOAM 6	#1
ravik21 New Member ravi k Join Date: Aug 2018 Posts: 2 Rep Power: 0	Hi Foamers, I was using openFOAM 2.3.1 for a internal hvac problem. I was able to provide heat flux BC on surfaces using turbulentHeatFluxTemperature BC. But in openFOAM 6 this BC is no longer supported. What is the alternative for this BC in OF6 ? I am shifting from OF2.3.1 to 6 because I want to use externalWallHeatFluxTemperature BC for giving HTC and external temperature on external walls. This is not possible in OF2.3.1 I saw some threads: wallHeatFlux utility for an incompressible case but didn't got any answer related to OF6. It looks like there is an utility to do this : wallheatflux-utility, but I want to know what is the native option in OF6 itself. Thanks, Ravi

August 5, 2018, 10:58	Self compilation	#2
sandeep.pandey New Member Sandeep Pandey Join Date: Jul 2016 Location: Germany Posts: 10 Rep Power: 9	Hi Ravi, I had the same issue while upgraded to OpenFOAM 5.x with Code: compressible::turbulentHeatFluxTemperature; Then, I took the same BC from the old version of OpenFOAM and compiled it by myself for OpenFOAM 5.x. As an example, I am attaching my BC for OpenFOAM 5.x (myturbulentHeatFluxTemperature.zip). Compile it as usual by Code: wclean and Code: wmake It worked fine for me, you can try with OpenFOAM 6. Bests, Sandeep

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August 5, 2018, 15:01		#3
ravik21 New Member ravi k Join Date: Aug 2018 Posts: 2 Rep Power: 0	Thanks a lot Sandeep. I will compile it with openFOAM 6 and will check if it works with OF6 or not. But I wonder why it was removed in newer versions, there is absolutely no other alternate boundary condition for turbulentHeatFluxTemperature ? If really there is no native alternative then it should be added back, because its a frequently required BC for thermal simulations. Ravi

January 14, 2019, 21:21		#4
calf.Z Senior Member Jianrui Zeng Join Date: May 2018 Location: China Posts: 157 Rep Power: 7	I think turbulentHeatFluxTemperature BC is replaced by externalWallHeatFluxTemperature ?