Boundary Heat Source

The Boundary Heat Source node models a heat source (or heat sink) that is embedded in the boundary.

B O U N D A R Y S E L E C T I O N

From the Selection list, choose the boundaries to apply the heat source.

B O U N D A R Y H E A T S O U R C E

Click the General source or Total boundary power button.

•If General source is selected, enter the boundary heat source Qb (SI unit: W/m2). A positive Qb is heating and a negative Qb is cooling. The default is 0.

•If Total boundary power is selected, enter the total power (total heat source) Pb,tot (SI unit: W).

Heat Continuity

The Heat Continuity node can be added to assembly pairs. It prescribes that the temperature field is continuous across the pair. Heat Continuity is only suitable for pairs where the boundaries match.

B O U N D A R Y S E L E C T I O N

The selection list in this section shows the boundaries for the selected pairs.

P A I R S E L E C T I O N

When Heat Continuity is selected from the Pairs menu, choose the pair to define. An identity pair has to be created first. Ctrl-click to deselect.

Pair Thin Thermally Resistive Layer

Use the Pair Thin Thermally Resistive Layer node to define the thickness and thermal conductivity of a resistive material located on boundaries. It can be added to pairs.

The heat flux across the Pair Thin Thermally Resistive Layer is defined by

Tu – Td

–nd –kd Td = –ks-------------------

ds

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