Define heat generated by an occupant in an AEC model

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

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you must first specify the physical characteristics of the model.

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This includes defining boundary conditions, such as applying a heat dissipation (in the form of a volumetric heat generation) to an occupant.

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Begin with Boundary Conditions selected on the Setup tab of the ribbon.

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Occupants are modeled as parts, so you also need to change the selection mode to Volume in the Selection panel.

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Now, you need to hide the wall and air parts so you can access the occupant.

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Press CTRL while middle clicking both the wall and the air part to hide them.

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Left-click to select the occupant.

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Next, on the Setup tab, Boundary Conditions context panel, click Edit.

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In the Boundary Conditions quick edit dialog, under Property settings, verify that the Type is set to Total Heat Generation.

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Set the Unit to W for Watts, and then set the Total Heat Generation to 60, based on an average human at rest.

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Click Apply.

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To verify that the heat condition is applied properly to the occupant, check the Design Study bar.

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Then, in the graphics window, ensure that the color of the stripe on the occupant now matches the Total Heat Generation in the legend.

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With the heat dissipated by the occupant properly set, the next step is to define the mesh sizing.