Enabling Acceleration in Moving Reference Frame
 

Dear All,

Is there a UDF to enable acceleration of moving reference frame (MRF) in Fluent 6.2? The standard Fluent capabilities allow only for a constant angular velocity.

This thread:
http://www.cfd-online.com/Forums/flu...imulation.html
says that such UDF exists on fluentusers.com


Where should I look for it? (which directory, path, section etc)
Regards.

Can you shed some light on how to implement this if you ever found it?

Thank you.

Hello,

Please read this thread:
http://university.fluent.com/forum/v...a13ec3903bf2ac

It explains the solution. As I recall, I generated a profile for the rotation of the entire system and used dynamic mesh.

Regards.

Thanks for your answer. Actually I want to accelerate the reference frame, not rotating but translating it.

I cannot access fluentusers.com but I think it suggests to use a dynamic mesh. I assume this means moving the object instead of the fluid, doesn't it? The problem with using a dynamic mesh is that the body displacement is much larger than the domain size...

Yes, I needed to rotate the entire domain. You can control displacement with your UDF/profile.