Hi,Guess and others:

I compiled the udf (define a moving wall )with DEFINE_ADJUST macro except some "warning "message.And I load it and Hook it successfully.Now my problems are: 1)I don't know how to do next step.In other words ,I choud not find the udf in defining the wall or the fluid zone.

2)In my situation ,only moving wall is defined ,I want to know when caculating ,will the fluid zone moving as the wall(if not,it is useless for my situation)

Could you give more advice for me? Thank you very much

hi:Guess and others:

In the boundary\wall ,when I select "moving wall" and"component",the udf appears in the x ,y,z velocity component.But when I selectl"rotating "instead of "component",no udf appears . In fact,I need to select the "rotating"because the omega is changing.

Another question ,in mutiple reference model(without udf) ,I define my fluid is set to moving reference frame and givven a rotational speed.Now when i use udf ,How to define my fluid zone is moving as the wall?

Thank you very much!

your problem is important, I meet the same problem as you, I need help too!