To model a problem involving a single rotating reference frame, follow the steps outlined below.
Define Models Solver...
(Note that this step is irrelevant if you are using one of the density-based solvers; these solvers always use an absolute velocity formulation.)
Define Boundary Conditions...
Details about these inputs are presented in Section 7.17.1 and in Section 7.18.1.
| For solid zones, you only need to activate the
Moving Reference Frame option if you intend to include the convective terms in the energy equation for the solid (Equation
13.2-11). Normally, this is not required if you wish to do a conjugate heat transfer problem where the solid and fluid zones are moving together.
If the wall is moving at the speed of the rotating frame (and hence stationary in the rotating frame), it is convenient to specify a relative angular velocity of zero. Likewise, a wall that is stationary in the non-rotating frame of reference should be given a velocity of zero in the absolute reference frame. Specifying the wall velocities in this manner obviates the need to modify these inputs later if a change is made in the rotational velocity of the fluid zone.
Details about these inputs are presented in Section 7.13.1.
Details about these inputs are presented in Sections 7.3.1 and 7.4.1.