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P H Y S I C A L M O D E L

Select a Default modelHeat transfer in solids or Heat transfer in fluids.

If required for 1D or 2D models, select the Out-of-plane heat transfer

check box and then enter the Thickness of the plane (dz). The default is 1

1D

m and applies to the entire geometry. If another thickness is specified for some of the domains, use the Change Thickness feature.

2D

D E P E N D E N T V A R I A B L E S

The Heat Transfer interface has a dependent variable for the Temperature T. The dependent variable names can be changed but the names of fields and dependent variables must be unique within a model.

A D V A N C E D S E T T I N G S

To display this section, click the Show button () and select Advanced Physics Interface Options. Normally these settings do not need to be changed.

D I S C R E T I Z A T I O N

To display this section, click the Show button () and select Discretization.

Select a TemperatureQuadratic (the default), Linear, Cubic, or Quartic. Select an element order for the Surface RadiosityLinear (the default), Quadratic, Cubic, or

Quartic.

C O N S I S T E N T A N D I N C O N S I S T E N T S T A B I L I Z A T I O N

To display this section, click the Show button () and select Stabilization. The Streamline diffusion check box is selected by default and should remain selected for optimal performance for heat transfer in fluids or other applications that include a convective or translational term. Crosswind diffusion provides extra diffusion in the region of sharp gradients. The added diffusion is orthogonal to the streamline diffusion, so streamline diffusion and crosswind diffusion can be used simultaneously.

410 | C H A P T E R 1 3 : H E A T T R A N S F E R B R A N C H

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