Rahul
Ansys Employee

Whether to use one-way or two-way coupling depends on the degree of physical coupling between the fluid and solid solution fields. If fields are strongly coupled you can use two-way coupling otherwise one-way.

For one-way FSI you can import fluent results in MAPDL by direct schematic connection between the Fluent solution cell to setup cell of MAPDL. Please refer user guide for more information: Using Imported Loads for One-Way FSI (ansys.com)

Also, refer following tutorials to know the setup of two-way FSI coupling:

Analyzing FSI with ANSYS Fluent and Mechanical - Part I (youtube.com)

Analyzing FSI with ANSYS Fluent and Mechanical - Part II (youtube.com)

Reed Valve FSI Co-Simulation with Partial Setup Export from Workbench (Fluent-Mechanical) (ansys.com)

Hope this helps!

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