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-   -   Simulation of surge and stall for Rotor 37 (http://www.cfd-online.com/Forums/cfx/115362-simulation-surge-stall-rotor-37-a.html)

Cedric March 28, 2013 23:32

Simulation of surge and stall for Rotor 37
 
Hi, dear friends~~
I'm doing a simulation of surge and stall for rotor 37 using the CFX , but I don't know how to set the boundary conditions,can anyone so kind to give me some advice?

Thanks in advance!

ghorrocks April 1, 2013 18:45

Have you read the best practices guide for turbomachinery? It is part of the CFX documentation.

Cedric April 17, 2013 21:57

Quote:

Originally Posted by ghorrocks (Post 417706)
Have you read the best practices guide for turbomachinery? It is part of the CFX documentation.

Yeah,I have read the Turbogrid Documentation on the Rotor37, but I think difficult part is to set the boundary conditions for Rotor37, and for the stage 37. I have tried to set set the Inlet flow rate and outlet static pressure, but the ANSYS CFX-pre always stopped abruptly, saying returning error code1.
Can you give me some advice?
Thank you very much.

ghorrocks April 18, 2013 06:16

Surge and stall are effects with complicated separated flow and you would expect difficult convergence with them. Have a look at the FAQs for hints on getting convergence. Also you are almost certainly not going to get a steady state simulation to converge. It will require a transient approach.


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