• Stabilization Techniques in the COMSOL Multiphysics Reference

Guide

See Also

Initial Values

The Initial Values node adds an initial value for the temperature that can serve as an initial condition for a transient simulation or as an initial guess for a nonlinear solver. Right-click to add additional Initial Values nodes.

D O M A I N S E L E C T I O N

From the Selection list, choose the domains to define an initial value.

I N I T I A L V A L U E S

Enter a value or expression for the initial value of the temperature T in the Temperature field. The default value is approximately room temperature, 293.15 K (20º C). When using surface-to-surface radiation specify an initial value for the Surface radiosity J. The default value is 0 W/m2. When using radiation in participating media specify an initial value for the Radiative intensity I1, ..., In. The default value is 0 W/m2.

Boundary Conditions for the Heat Transfer Interfaces

The Heat Transfer Interfaces have these boundary conditions available:

•Temperature

•Thermal Insulation (the default boundary condition)

•Outflow

•Symmetry

•Convective Cooling

•Heat Flux

•Open Boundary

•Surface-to-Ambient Radiation

•Periodic Heat Condition

•Out-of-Plane Heat Transfer Features

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