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Setup and Solution

1.4.3. General Settings

In the Mesh group box of the Domain ribbon tab, set the units for length..

Domain → Mesh → Units...

This opens the Set Units dialog box.

1.Select length under Quantities.

2.Select mm under Units.

3.Close the Set Units dialog box.

1.4.4. Solver Settings

In the Solver group box of the Physics ribbon tab, retain the default selection of the steady pressurebased solver.

Physics → Solver

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1.4.5. Models

1. Set up your models for the CFD simulation using the Models group box of the Physics ribbon tab.

Note

You can also use the Models task page, which can be accessed from the tree by expanding Setup and double-clicking the Models tree item.

2.Select the standard - turbulence model.

You will use the default settings for the standard - turbulence model, so you can enable it directly from the tree by right-clicking the Viscous node and choosing Standard k-epsilon from the context menu.

Setup → Models → Viscous Standard k-epsilon

1.4.6. Materials

Ordinarily, you would set up the materials for the CFD simulation using the Materials group box of the Physics ribbon tab.

In this tutorial, we will keep the default materials of air and aluminum.

1.4.7. Cell Zone Conditions

Ordinarily, you would set up the cell zone conditions for the CFD simulation using the Zones group box of the Physics ribbon tab.

In this tutorial, we will keep the default assignments of air for the fluid zone and aluminum for the solid zone.

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1.4.8. Boundary Conditions

Setup and Solution

1.Set the velocity and turbulence boundary conditions for the first inlet (inlet).

Setup → Boundary Conditions → inlet Edit...

a.Enter 10 m/s for Velocity Magnitude.

b.In the Turbulence group box, select Intensity and Hydraulic Diameter from the Specification Method drop-down list.

c.Enter 10 % for the Turbulent Intensity.

d.Enter 40 mm for the Hydraulic Diameter.

e.Click OK to close the Velocity Inlet dialog box.

2.Apply the same conditions to the other inlets (inlet1, and inlet2).

a.Select inlet from the Boundary Conditions node of the Outline View, right-click and select Copy from the context menu.

This opens the Copy Conditions dialog box.

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b.Select inlet 1 and inlet2 from the To Boundary Zones list.

c.Click Copy, click OK in the confirmation prompt, and close the Copy Conditions dialog box.

3.Set the boundary conditions at the outlet (outlet).

Setup → Boundary Conditions → outlet Edit...

	Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
18	of ANSYS, Inc. and its subsidiaries and affiliates.