A numerical method for simulating impinging air flow and heat transfer in plate-fin type heat sinks has been developed. In this method, all the fins of an individual heat sink and the air between them are replaced with a single, uniform element having an appropriate flow resistance and thermal conductivity. With this element, fine calculation meshes adapted to the shape of the actual heat sink are not needed, so the size of the calculation mesh is much smaller than that of conventional methods.

Issue Section:
Technical Briefs
Keywords:
heat sinks, flow simulation, computational fluid dynamics, heat transfer, finite element analysis
Topics:
Air flow, Flow (Dynamics), Heat sinks, Heat transfer, Numerical analysis, Fins, Pressure drop
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Copyright © 2001
 by ASME
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