Selecting the Physics Models

Physics models define the primary variables of the simulation, including pressure, temperature, velocity, and what mathematical formulation is used to generate the solution.

The main phenomena to solve for in this simulation is laminar, incompressible, multi-component gaseous flow. You use the segregated flow and fluid enthalpy models, and additionally select the multi-component fluid film, multiphase interaction, and Lagrangian multiphase models.

To select the physics models:

  1. For the physics continuum, Continua > Physics 1, select the following models in order:

    Group Box

    Model

    Enabled Models

    Three Dimensional (Pre-selected)

    Time

    Implicit Unsteady

    Material

    Multi-Component Gas

    Reaction Regime

    Non-reacting

    Flow

    Segregated Flow

    Segregated Species (selected automatically)

    Gradients (selected automatically)

    Equation of State

    Constant Density

    Viscous Regime

    Laminar

    Optional Models

    Fluid Film

    Gravity

    Segregated Fluid Enthalpy

    Multiphase Interaction

    Lagrangian Multiphase

  2. Click Close.
  3. To review the models, open the Physics 1 > Models node.


  4. Save the simulation.