CFX withy radiation can not work

baobaochong · January 9, 2012, 04:08

Hello, everyone

I met a problem when I using the cfx to calculate a 3-D cascade flow conjugate heat transfer problem.

when I only consider the convection and condution, the cfx-solver can work and I can get a result. But when I add the radition, the cfx-solver can not work. The radiation model I used is the Discret transfer model, the spectral model is weigthed sum of gray gases.

The cfx-solver stopped and the .out is as blew:

Radiation Coarsening Information

Domain Name: Coolant Domain

Target coarsening rate = 64
Number of fine grid elements =2473259
Number of radiation elements = 44048
Actual coarsening rate = 56

Domain Name:Hot Gas Domain

Target coarsening rate = 64
Number of fine grid elements =5905449
Number of radiation elements = 114592
Actual coarsening rate = 51

ERROR #001100279 has occurred in subroutine ErrAction.
Message:
Stopped in routine SU_SURF_TRI_3

Does anybody know where the problem is and what I should do to get a result.
I hope I can get help here and Thanks a lot.

ghorrocks · January 9, 2012, 04:47

I would try different coarsening rates. Just a guess, but easy to try.

stumpy · January 9, 2012, 10:42

You can try:
1. Make sure you are not using an old version of CFX
2. If you have a thin surface, split the two sides to appear in separate boundary conditions.

January 9, 2012, 04:08	CFX withy radiation can not work	#1
baobaochong New Member sunpeng Join Date: Oct 2009 Posts: 3 Rep Power: 16	Hello, everyone I met a problem when I using the cfx to calculate a 3-D cascade flow conjugate heat transfer problem. when I only consider the convection and condution, the cfx-solver can work and I can get a result. But when I add the radition, the cfx-solver can not work. The radiation model I used is the Discret transfer model, the spectral model is weigthed sum of gray gases. The cfx-solver stopped and the .out is as blew: Radiation Coarsening Information Domain Name: Coolant Domain Target coarsening rate = 64 Number of fine grid elements =2473259 Number of radiation elements = 44048 Actual coarsening rate = 56 Domain Name:Hot Gas Domain Target coarsening rate = 64 Number of fine grid elements =5905449 Number of radiation elements = 114592 Actual coarsening rate = 51 ERROR #001100279 has occurred in subroutine ErrAction. Message: Stopped in routine SU_SURF_TRI_3 Does anybody know where the problem is and what I should do to get a result. I hope I can get help here and Thanks a lot.

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January 9, 2012, 04:47		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	I would try different coarsening rates. Just a guess, but easy to try.

January 9, 2012, 10:42		#3
stumpy Senior Member Join Date: Apr 2009 Posts: 531 Rep Power: 21	You can try: 1. Make sure you are not using an old version of CFX 2. If you have a thin surface, split the two sides to appear in separate boundary conditions.