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Surface-to-surface radiation BC on a translational motion domain's boundary
Posted 5 août 2011, 08:40 UTC−4 Heat Transfer & Phase Change Version 4.1 1 Reply
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Hi everyone
I have one quick question for you : I'm working with the Heat transfer module, and I would like to know if it is possible to apply a surface to surface radiation BC to a boundary belonging to a solid using "translational motion"?
I tried with one and I got a non convergent analysis, telling me :
"Undefined value found.
- Detail: Undefined value found in the equation residual vector.
There are 4107 degrees of freedom giving NaN/Inf in the vector for the variable mod1.J ".
When I disable the two facing radiative BC, there is no issues (but also no radiation which bothers me a lot).
So I would like to know if anyone experienced those troubles or if there is something I do wrong. Just for information I have another radiation BC in my model and it doesn't trouble the analysis, because I know that for instance in 4.1 you can't apply radtiation BC on a surface which is a turbulent flow wall...
Thank you for your time, have a good day!!
I have one quick question for you : I'm working with the Heat transfer module, and I would like to know if it is possible to apply a surface to surface radiation BC to a boundary belonging to a solid using "translational motion"?
I tried with one and I got a non convergent analysis, telling me :
"Undefined value found.
- Detail: Undefined value found in the equation residual vector.
There are 4107 degrees of freedom giving NaN/Inf in the vector for the variable mod1.J ".
When I disable the two facing radiative BC, there is no issues (but also no radiation which bothers me a lot).
So I would like to know if anyone experienced those troubles or if there is something I do wrong. Just for information I have another radiation BC in my model and it doesn't trouble the analysis, because I know that for instance in 4.1 you can't apply radtiation BC on a surface which is a turbulent flow wall...
Thank you for your time, have a good day!!
1 Reply Last Post 5 août 2011, 10:53 UTC−4
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Posted:
1 decade ago
my bad I tried with a simplier model and it worked pretty good, so the error is elsewhere....