Change of behaviour of chtMultiRegionFoam with OF231

laurentD · March 27, 2015, 09:18

Hi foamers,
i am trying to upgrade my version of OF from 2.1.0 to 2.3.1.
The case i want to simulate use the chtMultiRegionFoam solver.
On OF231, for the solid parts, OF is solving the calculation of h, instead of T for the previous version.
The results of temperature on these solid parts are diverging and to finish, the job crashes for a maximum of iteration reached.
Does anybody has already heard something about the new way of using the chtMultiRegionFoam solver ?
Thanks a lot,
have a good day
Laurent

laurentD · March 30, 2015, 09:58

Hi,
i have verified a lot of the parameters and one question is still present in my mind ?
What is the meaning of the kappa, written in thermophysicalProperties ?
With OF210, i used to write the value of K, but oF231 ask the value of kappa.
Best regards,
Laurent

Asghari_M · April 2, 2015, 03:32

Hi;
It is probably same k (thermal conductivity).
Since I know kappa is Greek letter of thermal conductivity (κ).
As a question , also I want to add a source term in solid region.
How can I do this?
Can u help me?

March 27, 2015, 09:18	Change of behaviour of chtMultiRegionFoam with OF231	#1
laurentD Senior Member Laurent DASTUGUE Join Date: May 2014 Location: Chartres, France Posts: 122 Rep Power: 11	Hi foamers, i am trying to upgrade my version of OF from 2.1.0 to 2.3.1. The case i want to simulate use the chtMultiRegionFoam solver. On OF231, for the solid parts, OF is solving the calculation of h, instead of T for the previous version. The results of temperature on these solid parts are diverging and to finish, the job crashes for a maximum of iteration reached. Does anybody has already heard something about the new way of using the chtMultiRegionFoam solver ? Thanks a lot, have a good day Laurent

March 30, 2015, 09:58	Meaning of kappa	#2
laurentD Senior Member Laurent DASTUGUE Join Date: May 2014 Location: Chartres, France Posts: 122 Rep Power: 11	Hi, i have verified a lot of the parameters and one question is still present in my mind ? What is the meaning of the kappa, written in thermophysicalProperties ? With OF210, i used to write the value of K, but oF231 ask the value of kappa. Best regards, Laurent

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April 2, 2015, 03:32		#3
Asghari_M Senior Member Mehdi Asghari Join Date: Feb 2010 Posts: 127 Rep Power: 16	Hi; It is probably same k (thermal conductivity). Since I know kappa is Greek letter of thermal conductivity (κ). As a question , also I want to add a source term in solid region. How can I do this? Can u help me?