System coupling won’t allow me to create force output in 2 of my fluid interfaces

- May 3, 2022 at 8:03 pm
  
  dxc200018
  Subscriber
- May 4, 2022 at 11:34 am
  
  Rob
  Forum Moderator
  
  I don't think you can transmit forces through an interface, I think you need a conformal mesh and that'll give you a wall between the fluid & solid parts. can confirm, as will the documentation, it's not an application area I have much experience with.
- May 6, 2022 at 5:52 pm
  
  Steve
  Ansys Employee
  
  are Breast-duct-interface, breast-air-interface and air-funnel-interface Interfaces or Walls in Fluent? The Fluent model should only have fluid cell zones, can you confirm that's the case?
  It would be best to have three Fluid Solid Interfaces defined in Mechanical, one for each of the faces corresponding to: Breast-duct-interface, breast-air-interface and air-funnel-interface
  Have you gone through this tutorial yet? This may help answer some questions. For example, you very likely don't need Layering turned on.
  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v221/en/sysc_tut/sysc_tut_reedvalve_fluent.html
- May 10, 2022 at 4:41 am
  
  dxc200018
  Subscriber
  
  I found out my problem. They were defined as interfaces and not walls. Defining them as wells seems to allow me to do the coupling. Thanks!
  I have another weird error though. https://forum.ansys.com/discussion/39196/strange-error-in-doing-fsi-problem-in-ansys-workbench/p1?new=1

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