Learning Forum

[AndyHor]

Hi everybody,

 

I am solving a concentric spherical problem for 3D, where inner spherical is rotating with sin(wt) with respect to z-axis, and the outer stationary. 

 

I am curious, whether Ansys Fluent is solving this problem using Conservation of Linear Momentum or Conservation of Angular Momentum ?

Please advice. Thank you very much. 

The picture details is attached as in below.

[Rob]

The solver conserves momentum: check the equations in the theory guide. 

[AndyHor]

Hi Sir,

 

would like to ask, for this case, the rotational velocity of sin(wt), should I using relative velocity formulation or absolute velocity formulation ?

[Rob]

I leave that option alone; not sure I've ever used it.