Running the Simulation

You run the unsteady simulation for a physical time of 0.2 s, with a time-step size of 0.0005 s.

To aid solution convergence, modify the under-relaxation factors for the solvers, and set the Phase Slip Velocity solver Body force smoothing iterations to 2.

To run the simulation:

  1. Edit the Solvers node and set the following properties:
    Node Property Setting
    Implicit Unsteady Time-Step 5.0E-4 s
    Segregated MMP > Single-Step Under-Relaxation Factor 0.6
    K-Epsilon Turbulence Under-Relaxation Factor 0.3
    K-Epsilon Turbulent Viscosity Under-Relaxation Factor 0.3
    Phase Slip Velocity Body force smoothing iterations 2
  2. Edit the Stopping Criteria node and set the following properties:
    Node Property Setting
    Maximum Inner Iterations Enabled Activated
    Maximum Inner Iterations 25
    Maximum Physical Time Enabled Activated
    Maximum Physical Time 0.2 s
    Maximum Steps Enabled Deactivated
    Stop File Enabled Deactivated
    Stop Inner Iterations Deactivated
  3. Click (Run) in the Solution toolbar.
  4. When the simulation has finished running, save it.