Error:Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown.

richard ben · July 31, 2014, 22:24

Hello everyone,

I am running (parallel processing ) ANSYS Fluent Workbench (including Geometry, Mesh, Setup, Solution and Results). And I have a problem:
After I finish each run, I save the workbench. Then I reopen fluent (setup or solution), it can display the mesh. But suddenly it will exit and give me this error:

Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown.

And I can't open fluent anymore.
I have googled and some post said they had this problem while meshing. But it's not in this case I don't understand this at all. Could anybody help?

Thanks,
Richard

gurupalani · November 5, 2014, 23:11

I too am facing this problem. Did you solve it?

Reg,
Palani.

jwillie2000 · December 8, 2014, 02:49

Hi Richard Ben,

I am trying to upload my mesh into workbench 14.5 and when fluent opens and loads the mesh it crashes at a certain stage with the same error message you posted in this post. Were you able to find out the reason in your case?

Thanks!
James

CeesH · December 8, 2014, 08:44

Did you check for overlapping named selections in the mesh? Or are there 2D bodies in a 3D mesh? Such errors may invoke the message, if I remember correctly

jwillie2000 · December 8, 2014, 09:07

Hi CeesH,

I suspect it could be as a result of the second Point you raised. I have fins which are thin sitting on a cylindrical housing and the air flow is over the fins. So i am looking at Conjugate Heat Transfer (CHT) flow simulation. I terefore used shared topology to bring the fins and the motor housing embedded in the fluid and did the meshing. Do you remember how you were able to resolve this when you had a similar problem?

What is strange is that i have done a similar case that worked but in that the fins and motor housing are glued (Fixed together) where as in the case that not loading into Fluent they are not.

Thanks!
Jimmy

CeesH · December 8, 2014, 09:21

Hi James,

The problem only occurs if you are actually using sheet bodies (2D bodies) in a 3D geometry.

When dividing the geometry into several pieces, and using the interface between 2 parts or between 2 bodies as a wall (which is infinitely thin) there is no problem for me.

jwillie2000 · December 9, 2014, 04:07

Thanks CeesH for the help. I suppressed the fins and checked to see if i would be able to upload the mesh and it worked. So it means the problem is coming from the fins. I can do without them now as i intend to first simulate first only the fluid flow. But later i would have to add them as i have to account for heat thransfer in the fins. So i have to still try to figure out how i can get it to work.

In the geometry in which the fins are glued or fixed to the Motor housing, the case is able to upload. In the case that is not uploading, the fins are not glued or fixed to the motor housing. In the former, motor housing + fins is a single body where as in the latter, they are separate.

Thanks!
Jimmy

July 31, 2014, 22:24	Error:Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown.	#1
richard ben Member ben Join Date: Apr 2013 Posts: 36 Rep Power: 13	Hello everyone, I am running (parallel processing ) ANSYS Fluent Workbench (including Geometry, Mesh, Setup, Solution and Results). And I have a problem: After I finish each run, I save the workbench. Then I reopen fluent (setup or solution), it can display the mesh. But suddenly it will exit and give me this error: Exception of type 'Ansys.Fluent.Cortex.CortexNotAvailableException' was thrown. And I can't open fluent anymore. I have googled and some post said they had this problem while meshing. But it's not in this case I don't understand this at all. Could anybody help? Thanks, Richard

December 8, 2014, 08:44		#4
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	Did you check for overlapping named selections in the mesh? Or are there 2D bodies in a 3D mesh? Such errors may invoke the message, if I remember correctly Светлана and NguyenHuuToan like this.

December 8, 2014, 09:07		#5
jwillie2000 Member James Willie Join Date: Mar 2009 Posts: 81 Rep Power: 17	Hi CeesH, I suspect it could be as a result of the second Point you raised. I have fins which are thin sitting on a cylindrical housing and the air flow is over the fins. So i am looking at Conjugate Heat Transfer (CHT) flow simulation. I terefore used shared topology to bring the fins and the motor housing embedded in the fluid and did the meshing. Do you remember how you were able to resolve this when you had a similar problem? What is strange is that i have done a similar case that worked but in that the fins and motor housing are glued (Fixed together) where as in the case that not loading into Fluent they are not. Thanks! Jimmy Lakshitha likes this.

December 8, 2014, 09:21		#6
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	Hi James, The problem only occurs if you are actually using sheet bodies (2D bodies) in a 3D geometry. When dividing the geometry into several pieces, and using the interface between 2 parts or between 2 bodies as a wall (which is infinitely thin) there is no problem for me. Mina_Mbg likes this.

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November 5, 2014, 23:11		#2
gurupalani New Member C Palani Kumar Join Date: Nov 2009 Posts: 4 Rep Power: 16	I too am facing this problem. Did you solve it? Reg, Palani.

December 8, 2014, 02:49		#3
jwillie2000 Member James Willie Join Date: Mar 2009 Posts: 81 Rep Power: 17	Hi Richard Ben, I am trying to upload my mesh into workbench 14.5 and when fluent opens and loads the mesh it crashes at a certain stage with the same error message you posted in this post. Were you able to find out the reason in your case? Thanks! James

December 9, 2014, 04:07		#7
jwillie2000 Member James Willie Join Date: Mar 2009 Posts: 81 Rep Power: 17	Thanks CeesH for the help. I suppressed the fins and checked to see if i would be able to upload the mesh and it worked. So it means the problem is coming from the fins. I can do without them now as i intend to first simulate first only the fluid flow. But later i would have to add them as i have to account for heat thransfer in the fins. So i have to still try to figure out how i can get it to work. In the geometry in which the fins are glued or fixed to the Motor housing, the case is able to upload. In the case that is not uploading, the fins are not glued or fixed to the motor housing. In the former, motor housing + fins is a single body where as in the latter, they are separate. Thanks! Jimmy