Internal heat generation is the value that defines an energy per unit time and unit volume. This option is available for thermal analyses in ANSYS®; Steady-State, Thermal State, and Thermal-Electric analyses.
You can apply internal heat generation to all the bodies, lines, and 2D planar geometries in ANSYS® Mechanical.
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How To Apply Internal Heat Generation In ANSYS® Mechanical?
In ANSYS® Mechanical, just right-click on analysis then hover your mouse on ‘Insert’ then click on ‘Internal Heat Generation’ as shown by the red arrow above.
After clicking on ‘Internal Heat Generation’, click on the bodies as shown by the red arrow above then click on the ‘Apply’ button in the ‘Geometry’ section as shown by the green arrow above.
There are three modes of internal heat generation assignment is available; Constant, Tabular(Time), and Function.
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If you select ‘Constant’ which is the default, you need to define internal heat generation magnitude by entering directly into the ‘Magnitude’ section in ANSYS® Mechanical.
If you select ‘Tabular Data’ as shown by the green arrow above, you need to enter the times and internal heat generation values corresponding to these times on the table as shown in the green box above in ANSYS® Mechanical.
If you select the ‘Function’, you need to define your internal heat generation as a function in which the variable is ‘time’ as shown by the green arrow above. And, you can enter ‘Number Of Segments’ a shown by the red arrow above. So, the 1 second will be divided into this number of segments value, and all the internal heat generation value corresponds to each segmented time will be written on the table as shown in the red box above.
So, the definition of internal heat generation in ANSYS® Mechanical is very simple like above.
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NOTE: All the screenshots and images are used for educational and informative purposes. Images used courtesy of ANSYS, Inc.
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