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2 way FSI using System coupling GUI

- June 13, 2022 at 9:02 am
  mohammedlaminemekhalfia
  Subscriber
  Dear Ansys users.
  
  I am so excited about this new platform ( the first impression is awesome)
  
  Well, I am working on a 3D fluid-structure interaction problem, my problem consist of a 3D twisted blade excited by air jets though a pipe of 8 mm diameter ( a step function of 1 bar amplitude) using a profile
  
  The workbench is set to (transient + fluent) workstation as the parameters are as follow
  ---- Transient settings:
  
  for the fixed suppot:
  
  System coupling interface
  
  ------- Fluent side
  
  -------- SC parameters
  
  Duration control: 2s
  Step control: 0.0005 time step size
  Coupling Interface: One set to fluent at blade_wall (System coupling region)
  Two set to transient system coupling region
  Data transfer Dispolacement/force
  Relaxation factor to 0.5
  Convergence target 0.01
  The questions
  - after finishing the simulation , I plot the displacement versus time at the tip of the blade
  I was expecting a step, but the ramp at the edge, this I could not find reason why!!!!
  The following was ploted from 1 way FSI using external data:
  - The second issue, when I used system coupling GUI and launch the solution, the number of folvers set only to 1 which cause a big processing time even that I reset the values mannually to a higher solver numbers both in transient and fluent and the number of licences is available, yet the problem occurs

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