9.2.3 User Inputs for the Density-Based Solvers

If you are using one of the density-based solvers, in order to calculate a spatially periodic flow field with a specified pressure jump, you must first create a mesh with translationally periodic boundaries that are parallel to each other and equal in size. (If you need to create periodic boundaries, see Section  6.8.4.)

Then, follow the steps below:

1.   In the Periodic dialog box (Figure  9.2.3), which is opened from the Boundary Conditions task page, indicate that the periodicity is Translational (the default).

Boundary Conditions Periodic Edit...

Figure 9.2.3: The Periodic Dialog Box

2.   Also in the Periodic dialog box, set the Periodic Pressure Jump ( $\Delta p$ in this equation in the separate Theory Guide).

After completing these inputs, you can solve the periodic velocity field to convergence.