Boundary conditions > Thermal loads and constraints > Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal loads and constraints > Thermal Void load
Create a Thermal Void load
Click Home tab→Loads and Conditions group→Load Type list →Thermal Void .
In the Regions 1-5 group, in the Region 1 row, click Create Region .
Select the polygon edges to specify the thermal void.
In the Region dialog box, set the following:
Pressure (Pressure group) = 0.0102 N/mm^2(MPa)
Heat Transfer Coefficient (Heat Transfer group) = 175 W/m^2-dC
Click OK.
In the Thermal Void dialog box, in the Regions 1-5 group, in the Region 2 row, click Create Region .
Select the polygon edges to specify the thermal void.
In the Region dialog box, set the following:
Pressure (Pressure group) = 0.0102 N/mm^2(MPa)
Heat Transfer Coefficient (Heat Transfer group) = 195 W/m^2-dC
Swril Velocity (Heat Transfer group) = 0.1 mm/sec
Click OK.
In the Thermal Void dialog box, set the following:
Fluid Material = Air
Heat Load = 0.001 W
Click OK.
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Thermal Void
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Create a Thermal Void load, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid618355 · retrieved 2026-07-17