Rahul
Ansys Employee

Hello Anish,

One poosbile solution could be to solve fluid part in fluent and solid part in Mechanical and solve it as a coupled analysis.

Please refer users guide to know variables available for system coupling and settings : 42.4. Variables Available for System Coupling (ansys.com) and 42.5. System Coupling Related Settings in Fluent (ansys.com).

Please refer following tutorials to learn the workflow:

System Coupling Tutorials (ansys.com)
Analyzing FSI with ANSYS Fluent and Mechanical - Part I (youtube.com)
Analyzing FSI with ANSYS Fluent and Mechanical - Part II (youtube.com)

Hope this helps!