[minhhdac]

i has an error:
i has a error: An error has occurred in cfx5solve: the ANSYS CFX slover exited with return code 1. no results has been created.
+--------------------------------------------------------------------+
| Writing transient file 0_CS.trn |
| Name : Transient Results 1 |
| Type : Selected Variables |
| Option : Every Coupling Step |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| ERROR #002100061 has occurred in subroutine SERVE_CLIENTS. |
| Message: |
| The connection between this CFX process and an external process |
| has died unexpectedly. The following error was received: |
| External process : ANSYS |
| Error experienced : Read |
| |
| ** This error is fatal: Terminating ANSYS CFX Solver execution ** |
| Please review the output, error and log files from both the CFX |
| and external processes to determine the cause of the error. |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| 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.

+--------------------------------------------------------------------+
| The following transient and backup files written by the ANSYS CFX |
| solver have been saved in the directory |
| C:/Users/Admin/AppData/Local/Temp/nhe |
| 210_4732_Working/dp0/CFX-1/CFX/Work2/Fluid Flow CFX_002: |
| |
| 0_CS.trn |
+--------------------------------------------------------------------+


+--------------------------------------------------------------------+
| The results from this run of the ANSYS solver have been written to |
| C:\Users\Admin\AppData\Local\Temp\nhe |
| 210_4732_Working\dp0\CFX-1\CFX\Work2\Fluid Flow CFX_002.ansys |
+--------------------------------------------------------------------+


+--------------------------------------------------------------------+
| The following user files have been saved in the directory |
| C:/Users/Admin/AppData/Local/Temp/nhe |
| 210_4732_Working/dp0/CFX-1/CFX/Work2/Fluid Flow CFX_002: |
| |
| mon |
+--------------------------------------------------------------------+


+--------------------------------------------------------------------+
| Warning! |
| |
| After waiting for 60 seconds, 1 solver manager process(es) appear |
| not to have noticed that this run has ended. You may get errors |
| removing some files if they are still open in the solver manager

[Huski]

hi,
Is it a FSI 2 way simulation??
I think is a mesh problem.
You can try to improve the mesh for both CFX and FEA. The quality has to be very good for all the element (min around 0.4).
Try different stifness strategies for example you can write the following expression:

1 [m^5*s^-1]/Volume of Finite Volumes


I hope to be helpful

[minhhdac]

thank Mr Huski!
I using a FSI 2 way simulation, I try to change the mesh quality but still error.
it's problem with outfile.
Please help me!

[Huski]

Did you try to change the mesh stiffnes (it is in default domain)? it is very important.
You can decrease the time step, but I'd keep as a last resort.
How much is your Courant number during the simulation?

You have to make a mesh uniform and the fluid-solid interface has to have pratically the same mesh dimension for both CFX and FEA.

You have to work in my opinion with the mesh and try new different mesh. It's a very long e difficult way. But don't worry, You will find the solution!

[Huski]

Did you put the same timestep for CFD and FEA?