Design And Optimization Of An Impingement-cooled Heat Sink Using Cfd Approaches

Abstract

Impingement Cooling Method Utilizes High Speed Jet(s) To Impinge On A High Temperature Surface For Cooling Or Heating. In This Study, Various Heat Sinks Geo Metrical Configurations Heat Sink With No Fins, Heat Sink With Continuous Plate Fins, Heat Sink With Interrupted Plate Fins, Heat Sinks With Pin-fins Were Studied. The Studies Had Been Conducted For Three Jet Velocity (2, 4 And 6 M/s) As Well As Three Z/d Ratios Of 2, 4 And 6. Numerical Simulations For This Work Had Been Performed In ANSYS FLUENT With RNG K-ϵ Turbulence Model To Account For The Reynolds Stresses. As High As 25% Heat Transfer Enhancement Was Observed By Employing Pin-fins. The Ineffectiveness Of The Plate Fins Both Continuous And Interrupted For The Impingement Cooling Were Attributed To Obstruction To The Flow Path In These Geo Metrical Variants. Also, The Increase In The Pin-fin Diameter Was Resulted Heat Transfer Enhancement.

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