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Old   May 3, 2011, 04:58
Default error in two way fsi
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Govindaraju
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Dear all

I am doing two way fsi problem.

during my CFX pre setup I found this type of error.Please rectify the problem


"In Analysis 'Flow Analysis 1' - Analysis Type: The specified Mechanical Input File 'ds.dat' can not be found or does not contain any valid interfaces. Specify an input file with valid interfaces, update the file location if it has moved or set the External Solver Coupling option to "ANSYS MultiField via Prep7"."

Regards
Govind
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Old   May 3, 2011, 09:06
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Lance
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Your solid model is either
1) missing, or
2) does not contain any FSI interfaces.
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Old   May 3, 2011, 09:31
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CFX-Pre sometimes gives this error for no apparent reason. Assuming the ds.dat file is there and it contain an interface, then delete the link between the two Setup cells in Workbench and re-create it.
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Old   May 4, 2011, 14:03
Default You should reset the CFX-solver.
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James
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You should reset the CFX-solver.
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Old   May 5, 2011, 03:24
Default error
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Govindaraju
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sorry for my late reply.
I am working on two way FSI inside the artery. The blood that I have taken as a Non Newtonian . I use my inlet velocity as a sinusoidal nature. outlet set to 0 Pa.

But in the cfx post I did n't get proper result and simulation please help me.
I could not find streamline path and pressure contour .
Please help me

Thanks in advance

Regards
kmgraju
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Old   May 12, 2011, 03:45
Default help on fsi
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Muhammad Amir
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Quote:
Originally Posted by kmgraju View Post
Dear all

I am doing two way fsi problem.

during my CFX pre setup I found this type of error.Please rectify the problem


"In Analysis 'Flow Analysis 1' - Analysis Type: The specified Mechanical Input File 'ds.dat' can not be found or does not contain any valid interfaces. Specify an input file with valid interfaces, update the file location if it has moved or set the External Solver Coupling option to "ANSYS MultiField via Prep7"."

Regards
Govind
sir I am doing fsi of a wing and I am trying to do it for agard 445.6 wing,because this wing is used as benchmark in fsi because experimental results are available. Can you please help fro where I can find the geometry of that wing? please help me if you can?
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Old   September 19, 2012, 16:30
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Hesam Moghaddam
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Quote:
Originally Posted by stumpy View Post
CFX-Pre sometimes gives this error for no apparent reason. Assuming the ds.dat file is there and it contain an interface, then delete the link between the two Setup cells in Workbench and re-create it.
Thanks
It worked for me.
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