Investigation of impingement cooling on a heat sink using CFD simulation

The aim of this study is to investigate heat transfer characteristics of a circular array of air jets impinging on to a heat sink under a thermal load through CFD simulation. This is necessary to maintain the optimum temperature for the component to function as efficiently as possible. The simulatio...

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Bibliographic Details
Published in:	Materials today : proceedings Vol. 46; pp. 8753 - 8760
Main Authors:	Thakar, Shridhar S., Nambiar, Sannil, Chandavarkar, Gaurav A., Senthur Prabu, S.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 2021
Subjects:	FLUENT Heat sink Heat transfer Impingement Reynold’s number Static temperature Static temperature Reynold’s number FLUENT Impingement Heat sink Heat transfer
Online Access:	Get full text
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Summary:	The aim of this study is to investigate heat transfer characteristics of a circular array of air jets impinging on to a heat sink under a thermal load through CFD simulation. This is necessary to maintain the optimum temperature for the component to function as efficiently as possible. The simulation is done using a conjugate heat transfer model along with an SST k-ω model to model the turbulence in ANSYS FLUENT. The dependent parameters are the inlet Reynolds number and the non-dimensional quantity Z/d representing the ratio of distance between the inlet and the imping surface, to the inlet jet diameter. Multiple values of Z/d and Inlet Reynolds number are taken for each iteration. It is seen that the steady state temperature drops from 85 °C to 60 °C when the inlet Reynolds number goes from Re = 6000 to Re = 12000. The temperature goes from 61 °C to 69 °C when the Z/d ratio is changed from 4 to 10.
ISSN:	2214-7853 2214-7853
DOI:	10.1016/j.matpr.2021.04.066