• CFD

Assign air to the internal flow volume in an AEC model

How to assign air to the internal flow volume in an AEC model, as part of the process of specifying the physical characteristics.


00:03

To prepare for running an ambient room temperature simulation in Autodesk CFD,

00:08

you must specify the physical characteristics of the model.

00:12

This includes assigning a material of air to the internal flow volume.

00:17

To start, press CTRL and middle-click the wall to hide it.

00:21

Left-click to select the internal flow volume.

00:25

Then, on the ribbon, in the Setup tab, Materials panel, click Edit.

00:31

The Materials quick edit dialog opens, where you can select the material type.

00:36

For this example, under Property settings, click the Type value to expand the drop-down, and select Fluid.

00:44

Next, expand the Name drop-down and select Air.

00:48

Next, define the properties of air to vary with temperature.

00:52

This allows buoyancy, or natural convection, to affect the air flow.

00:57

In the Environment row, click Set.

01:00

In the Material Environment dialog, select Variable, and click OK.

01:06

Click Apply.

01:08

To verify that air is properly assigned, in the Design Study Bar, confirm the material assignment for the Air part.

01:16

Then, in the graphics window, ensure that the color of the internal air part now matches the Air color in the legend.

01:24

With this material assigned, you are ready to move on to the next step of preparing your model for a CFD simulation.

Video transcript

00:03

To prepare for running an ambient room temperature simulation in Autodesk CFD,

00:08

you must specify the physical characteristics of the model.

00:12

This includes assigning a material of air to the internal flow volume.

00:17

To start, press CTRL and middle-click the wall to hide it.

00:21

Left-click to select the internal flow volume.

00:25

Then, on the ribbon, in the Setup tab, Materials panel, click Edit.

00:31

The Materials quick edit dialog opens, where you can select the material type.

00:36

For this example, under Property settings, click the Type value to expand the drop-down, and select Fluid.

00:44

Next, expand the Name drop-down and select Air.

00:48

Next, define the properties of air to vary with temperature.

00:52

This allows buoyancy, or natural convection, to affect the air flow.

00:57

In the Environment row, click Set.

01:00

In the Material Environment dialog, select Variable, and click OK.

01:06

Click Apply.

01:08

To verify that air is properly assigned, in the Design Study Bar, confirm the material assignment for the Air part.

01:16

Then, in the graphics window, ensure that the color of the internal air part now matches the Air color in the legend.

01:24

With this material assigned, you are ready to move on to the next step of preparing your model for a CFD simulation.

Was this information helpful?