CFX solver error

kh_thakor · January 11, 2011, 02:17

+--------------------------------------------------------------------+
| Job Information |
+--------------------------------------------------------------------+

Run mode: serial run

Host computer: ENGG01
Job started: Tue Jan 11 11:43:37 2011

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Invalid diffusion coefficient VISCDYN_FL1 has been set for variab- |
| le TKE_FL1 in equation TKE_FL1 |
| |
| |
| |
| |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine DEF_GAMEFF |
| |
| |
| |
| |
| |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| The ANSYS CFX solver exited with return code 1. No results file |
| has been created. |
+--------------------------------------------------------------------+

End of solution stage.

This run of the ANSYS CFX Solver has finished.

CAN ANYONE PLEASE ASSIST ME IN SOLVING THIS ERROR????

ghorrocks · January 11, 2011, 07:21

It is a little cryptic but pretty obvious - it has had an error calculating the diffusion coefficient in the k equation. Can you explain what you are doing and why this error may have come up?

kh_thakor · January 11, 2011, 08:11

I am conducting cfd for a control valve. I had meshed the flow portion in ICEM CFD with about 40lac elements. But later when I reduced the number of elements to 10 lacs...the problem vanished.
The problem is very simple. I just have to obtain the pressure distribution for various positions of valve opening(40%,25% and 15%)....

ghorrocks · January 11, 2011, 17:39

What is 40lac and 10 lac?

Sounds like a straight forward simulation. If you are getting errors like this then I would suspect your model is numerically unstable. Improve mesh quality, smaller timesteps and double precision numerics can help.

January 11, 2011, 02:17	CFX solver error	#1
kh_thakor New Member Kamlesh Join Date: Mar 2010 Posts: 5 Rep Power: 16	+--------------------------------------------------------------------+ \| Job Information \| +--------------------------------------------------------------------+ Run mode: serial run Host computer: ENGG01 Job started: Tue Jan 11 11:43:37 2011 +--------------------------------------------------------------------+ \| ERROR #001100279 has occurred in subroutine ErrAction. \| \| Message: \| \| Invalid diffusion coefficient VISCDYN_FL1 has been set for variab- \| \| le TKE_FL1 in equation TKE_FL1 \| \| \| \| \| \| \| \| \| +--------------------------------------------------------------------+ +--------------------------------------------------------------------+ \| ERROR #001100279 has occurred in subroutine ErrAction. \| \| Message: \| \| Stopped in routine DEF_GAMEFF \| \| \| \| \| \| \| \| \| \| \| +--------------------------------------------------------------------+ +--------------------------------------------------------------------+ \| An error has occurred in cfx5solve: \| \| \| \| The ANSYS CFX solver exited with return code 1. No results file \| \| has been created. \| +--------------------------------------------------------------------+ End of solution stage. This run of the ANSYS CFX Solver has finished. CAN ANYONE PLEASE ASSIST ME IN SOLVING THIS ERROR????

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January 11, 2011, 07:21		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	It is a little cryptic but pretty obvious - it has had an error calculating the diffusion coefficient in the k equation. Can you explain what you are doing and why this error may have come up?

January 11, 2011, 08:11		#3
kh_thakor New Member Kamlesh Join Date: Mar 2010 Posts: 5 Rep Power: 16	I am conducting cfd for a control valve. I had meshed the flow portion in ICEM CFD with about 40lac elements. But later when I reduced the number of elements to 10 lacs...the problem vanished. The problem is very simple. I just have to obtain the pressure distribution for various positions of valve opening(40%,25% and 15%)....

January 11, 2011, 17:39		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	What is 40lac and 10 lac? Sounds like a straight forward simulation. If you are getting errors like this then I would suspect your model is numerically unstable. Improve mesh quality, smaller timesteps and double precision numerics can help.