-
From the Procedures section of the action bar, click Steady State Step
.
- Optional:
Enter a descriptive
Name.
-
Enter a value for the Maximum iterations for the
simulation.
The step stops if this maximum is exceeded before the solvers arrive at the
complete solution for the step. By default, steady-state flow steps run for a maximum
of 2000 iterations.
-
For incompressible flow simulations, determine how you want to specify the
under-relaxation factor for the equations in the simulation:
- Select Enable auto under-relaxation for all equations,
which defines the under-relaxation factor automatically for all equations.
- Clear Enable auto under-relaxation for all equations, and
specify the under-relaxation factor manually in each applicable equation controls
section.
For more information about under-relaxation factors, see About Under-Relaxation Factors.
-
Expand the Stopping criteria section to define one or more
conditions that, when all conditions are satisfied, prompt the app to end
the step's iterations.
For more information, see Specify Stopping Criteria.
-
Optional: Specify the equation controls for each equation required by your
steady-state flow step.
For more information, see Equation Controls.
-
Optional: Expand the Expert numerics controls
section to specify the analysis behavior for disabling secondary diffusion and
second-order advection.
Disabling secondary diffusion and second-order advection can help the solver converge
in situations when it might not otherwise; however, the solution might be less
robust. For more information, see Defining Expert Numerics Controls.
-
Optional: Expand the Expert cycle controls section
to freeze the flow field or energy field during simulation.
Freezing the flow field or energy field deactivates the corresponding equation
solvers, thereby saving simulation time. For more information, see Freezing the Flow Field and Energy Field.
-
Optional: Select Enable particle modeling to
simulate the motion of Lagrangian particles in the fluid physics, and then expand the
Particle modeling parameters section to specify the type,
material, and behavior for the particles.
For more information, see Defining Particle Controls.
-
Click
OK.
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