1-Way FSI-Transient-Time Stepping

Gowrav · March 16, 2013, 11:51

Hi,
I am doing my masters project on FSI of microturbine to evaluate stress on blades.. I have completed CFD Part in Fluent. Also linked the result to Transient Structural as Workbench Procedure. I have successfully imported pressure on blades. Also given equivalent time steps as i given in transient fluid analysis previously.. But still its not matching in Analysis Settings..
I have also kept node-to-node connectivity btw solid and fluid( am not sure whether its required or not).
180k elements-tet. 720 time steps each of 3.33e-6s
What might ve went wrong,, whether its bcs of tiny time step?

( i am able to get results for steady state CFD and Static Structural Analysis bt its not working with transient, also am unable to import transient CFD results as Static Load in Static Structural)

kindly looking for help..
Thanks in Advance
Gowrav

stumpy · March 18, 2013, 13:22

There's no automated mapping between transient CFD and transient structural. Two options:
1. Use the External Data component (export CFD results to ASCII files, then follow the documented External Data procedure for importing multiple files)
2. Take a look at "FSI Transient_R145_v1" on https://support.ansys.com/AnsysCusto...ry/ACT+Library

tmeysam92 · July 23, 2013, 05:28

Quote:

Originally Posted by stumpy

There's no automated mapping between transient CFD and transient structural. Two options:
1. Use the External Data component (export CFD results to ASCII files, then follow the documented External Data procedure for importing multiple files)
2. Take a look at "FSI Transient_R145_v1" on https://support.ansys.com/AnsysCusto...ry/ACT+Library

thanks Stumpy

i do not have a user name and password for customer portal.

is it possible to upload one of the tutorials about coupling transient structural and fluent?

stumpy · July 23, 2013, 17:39

If you have a valid license or your university has a valid license then you can register for the portal.

March 16, 2013, 11:51	1-Way FSI-Transient-Time Stepping	#1
Gowrav New Member Gowrav Shenoy Join Date: Feb 2013 Posts: 22 Rep Power: 13	Hi, I am doing my masters project on FSI of microturbine to evaluate stress on blades.. I have completed CFD Part in Fluent. Also linked the result to Transient Structural as Workbench Procedure. I have successfully imported pressure on blades. Also given equivalent time steps as i given in transient fluid analysis previously.. But still its not matching in Analysis Settings.. I have also kept node-to-node connectivity btw solid and fluid( am not sure whether its required or not). 180k elements-tet. 720 time steps each of 3.33e-6s What might ve went wrong,, whether its bcs of tiny time step? ( i am able to get results for steady state CFD and Static Structural Analysis bt its not working with transient, also am unable to import transient CFD results as Static Load in Static Structural) kindly looking for help.. Thanks in Advance Gowrav

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March 18, 2013, 13:22		#2
stumpy Senior Member Join Date: Apr 2009 Posts: 531 Rep Power: 21	There's no automated mapping between transient CFD and transient structural. Two options: 1. Use the External Data component (export CFD results to ASCII files, then follow the documented External Data procedure for importing multiple files) 2. Take a look at "FSI Transient_R145_v1" on https://support.ansys.com/AnsysCusto...ry/ACT+Library

July 23, 2013, 17:39		#4
stumpy Senior Member Join Date: Apr 2009 Posts: 531 Rep Power: 21	If you have a valid license or your university has a valid license then you can register for the portal.