Title :
Computational modelling of flow bypass effects on straight fin heat sink in rectangular duct
Author_Institution :
IBM Corp., Hopewell Junction, NY, USA
Abstract :
Flow bypass effects of straight fin heat sink inside a rectangular duct is studied using computational fluid dynamics techniques. Computation accuracy is verified by comparing with experimental of a test problem. Both tip clearance and spanwise spacing dimensions are varied to examine the flow bypass effects on thermal resistances and pressure drops. Averaged local velocity and heat transfer coefficient distributions along the fin length are also examined to study the flow and thermal characteristic details
Keywords :
cooling; flow simulation; fluid dynamics; heat sinks; pipe flow; thermal resistance; computational fluid dynamics model; flow bypass; heat transfer; local velocity; pressure drop; rectangular duct; straight fin heat sink; thermal resistance; Computational fluid dynamics; Computational modeling; Coolants; Design engineering; Ducts; Electronic packaging thermal management; Heat engines; Heat sinks; Printed circuits; Thermal engineering;
Conference_Titel :
Semiconductor Thermal Measurement and Management Symposium, 1996. SEMI-THERM XII. Proceedings., Twelfth Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-3139-7
DOI :
10.1109/STHERM.1996.545106
