Numerical study of thermal performance of perforated circular pin fin heat sinks in forced convection

Wen, Mao-Yu; Yeh, Cheng-Hsiung

doi:10.1007/s00231-016-1960-9

Cited by 7 publications

(1 citation statement)

References 37 publications

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“…They demonstrated that the flow interaction with each other is an important mechanism affects heat transfer rate. Wen and Yeh [12] numerically studied forced convection heat transfer for two different types of circular fins. They found that smaller hollow in the base plate concludes more effectiveness in cmparison with the larger one.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer and Friction Characteristics of an Array of Perforated Fins Under Laminar Forced Convection

Nadooshan¹,

Mohammadi²,

Bayareh³

2019

Journal of Thermal Engineering

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Three-dimensional incompressible laminar fluid flow and heat transfer of a heated array of circular perforated fins are examined numerically. The Navier-Stokes and energy equations are solved by a finite volume method using the SIMPLE algorithm. The second order upwind technique is employed to discretize the momentum and energy equations. Computations were performed for a range of Reynolds numbers 100 ≤Re ≤ 350. Thermal performance and effectiveness as well as friction coefficient of perforated and solid fins are determined for the optimum porosity. The results show that the average coefficient of friction reduces with increasing the Reynolds number and the number of perforations. The heat transfer rate increases with the porosity and the Reynolds number. It is found that perforated fin effectiveness decreases with the number of peroration at constant Reynolds numbers.

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Section: Introductionmentioning

confidence: 99%