Selecting Physics Models

In this simulation you require two physics continua—one continuum for the physics that are solved in Simcenter STAR-CCM+ (the internal continuum) and one continuum that represents the physics in Abaqus (the external continuum).

Following mesh generation, Simcenter STAR-CCM+ automatically created a physics continuum for the fluid. Select the physics models for this continuum:
  1. Rename the Continua > Physics 1 node to Fluid Physics.
  2. For the physics continuum, Continua > Fluid Physics, select the following physics models in order:
    Group box Model
    Enabled Models Three Dimensional (Selected automatically)
    Time Implicit Unsteady
    Material Gas
    Flow Segregated Flow
    Enabled Models Gradients (Selected automatically)
    Equation of State Ideal Gas
    Energy Segregated Fluid Enthalpy
    Viscous Regime Turbulent
    Reynolds-Averaged Navier-Stokes (Selected automatically)
    Reynolds-Averaged Turbulence K-Epsilon Turbulence
    Realizable K-Epsilon Two-Layer (Selected automatically)
    Two-Layer All y+ Wall Treatment (Selected automatically)
    Wall Distance (Selected automatically)
    Optional Models Cell Quality Remediation
    Optional Models Co-Simulation
    Co-Simulation Models Abaqus
    Abaqus Coupling Models Abaqus Explicit Coupling
  3. Click Close.
To create the external continuum that represents the solid physics solved in Abaqus:
  1. Create a physics continuum named Solid (External).
  2. For the physics continuum, Solid (External), select the following models in order:
    Group box Model
    Optional Models External Continuum
    External Continuum External Application
    External Application Abaqus
    Time Implicit Unsteady
    Optional Models Surface Three Dimensional (selected automatically)
  3. Click Close.
When you activate co-simulation models, Simcenter STAR-CCM+ adds a co-simulation link to the simulation tree, External Links > Link 1. A link represents the connection to an external application and allows you to define co-simulation settings. Associate this link with the external continuum that represents Abaqus:
  1. Select the External Links > Link 1 > Conditions > External Continua node and set Continua to Solid (External).