Learning Forum

[mohammedlaminemekhalfia]

Dear all.

I tried two way FSI, to plot displacement of this blade tip per time.
The Fluent has a transient pressure inlet with a step function where at 0.3 I used Static structural.
the step time was 0.001, the full time was 2 s and the relaxation factor =0.55 for both side.
I used Ensight to visualize the results
I have two questions:
I expected that the result (picture attached) should be a step function not a ramp in the interval between 0.3 and 0.9 ? what would be the reason for that? I performed one way FSI using external data transfer and it seem that the feedback was a step function so why there is this divergence in results between the two methods?
How to make System coupling GUI work with more than 2 solvers? it is so so low
with the best regards

[Stephen Orlando]

Hi Please provide more information about the settings used to set up your case. It's not possible to tell what happened based on the information provided.
If you want to run a transient simulation, you'll need to use Transient Structural.
I recommend going over this tutorial in the Ansys documentation that shows a 2-way transient FSI simulation with Fluent and Mechanical. https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v221/en/sysc_tut/sysc_tut_reedvalve_fluent.html
Steve