Flutter analysis using Fluent (Two way FSI)

mufarooq · January 1, 2023, 05:02

Hi,

I am working on a project based on the flutter analysis. To do it, I am trying to do a 2-way FSI study with ANSYS-FLUENT. I am facing some problems. In my case, the study is at Mach 5.0. I need to get modal shapes of the geometry for vibration purposes.

-Which solver is the most accurate one for a transonic flow?
-In fluent, I have defined a velocity inlet and pressure outlet, but I dont know if this is correct in this situation.
Should i use density based solver or pressure based?

Thank you in advance.

MarcoC501 · April 3, 2023, 14:50

It is hard to give advice without knowing the geomery a bit more in detail.

I assume you are referring to the fluid dynamic part (not structural): I can suggest density based solver.

For the boundary conditions: you should specify the inlet Mach number with pressure-inlet and the pressure-outlet for the outlet. With pressure-inlet, you can set total pressure, temperature and supersonic (gauge) pressure.

January 1, 2023, 05:02	Flutter analysis using Fluent (Two way FSI)	#1
mufarooq New Member Umer Join Date: Jan 2023 Posts: 2 Rep Power: 0	Hi, I am working on a project based on the flutter analysis. To do it, I am trying to do a 2-way FSI study with ANSYS-FLUENT. I am facing some problems. In my case, the study is at Mach 5.0. I need to get modal shapes of the geometry for vibration purposes. -Which solver is the most accurate one for a transonic flow? -In fluent, I have defined a velocity inlet and pressure outlet, but I dont know if this is correct in this situation. Should i use density based solver or pressure based? Thank you in advance.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Flutter analysis of compressor blade	sridharabc228	CFX	1	April 13, 2017 20:10
How to carry out 3D shell and Tube Heat Exchanger analysis in fluent	medogalal	FLUENT	3	December 30, 2015 05:28
Running UDF with Supercomputer	roi247	FLUENT	4	October 15, 2015 14:41
How to do a one-way FSI analysis with ANSYS Fluent?	diwakar	ANSYS	1	July 31, 2015 16:16
FSI: How to transfer static pressure from fluent to ANSYS	momo_sjx	FLUENT	0	October 9, 2012 14:37

April 3, 2023, 14:50		#2
MarcoC501 Member MC Join Date: Apr 2021 Posts: 43 Rep Power: 5	It is hard to give advice without knowing the geomery a bit more in detail. I assume you are referring to the fluid dynamic part (not structural): I can suggest density based solver. For the boundary conditions: you should specify the inlet Mach number with pressure-inlet and the pressure-outlet for the outlet. With pressure-inlet, you can set total pressure, temperature and supersonic (gauge) pressure.