Setting up the Models

A stationary, three-dimensional grid is employed

The fluid is a slightly compressible gas (air) that obeys the ideal gas equation of state

The flow is turbulent and non-isothermal

The k-e model is used for representing turbulence effects

The problem is to be solved using the segregated flow solver

Open the Continua node in the simulation tree, right-click on the Physics 1 node and choose item Select models from the pop-up menu.

In the Model Selection dialog, note that the Auto-select recommended models checkbox is ticked by default. In general, you should accept this setting unless you have good reasons for needing to make your own special selections.

Go to each group of options presented by the Model Selection dialog and, working from top to bottom, select the following options:

Stationary in the Motion group box

Gas in the Material group box

Segregated Flow in the Flow group box

Ideal Gas in the Equation of State group box

Steady in the Time group box

Turbulent in the Viscous Regime group box

K-Epsilon Turbulence in the Reynolds-Averaged Turbulence group box

The remaining modeling options in the dialog are optional and not required for this problem so click Close to complete the model selection.

Open the Models node under Physics 1 to verify that it contains nodes corresponding to each selection made above. These can now be inspected and edited as necessary to complete the model definitions.