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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

THERMAL PERFORMANCE OF HOLLOW HYBRID FIN HEAT SINKS WITH IMPINGING FLOW

Get access (open in a dialog) DOI: 10.1615/IHTC16.ctm.023466
pages 3811-3821

Abstract

The thermal performances of hollow hybrid fin heat sinks (HHFHSs) with impinging flow are numerically investigated. The HHF is a hollow pin fin containing a perforation near the fin base and concatenated with radial plate fins, and the array of the HHFs constitutes the HHFHS. Preceding investigations show that the natural convection HHFHS could have a superior mass-based thermal performance to a pin fin heat sink (PFHS). The HHFHS with impinging flow is expected to have better thermal performance than the PFHS due to internally and externally enhanced surfaces. Hence, the thermal performance of the HHFHS with impinging flow should be carefully explored. This study discusses the CFD modelling methodology, thermal-flow behaviors, and thermal performances of the HHFHSs under crucial parametric variances.