Electrohydrodynamic enhancement of heat transfer in vertical fin array using computational fluid dynamics technique

Kasayapanand, Nat

doi:10.1016/j.icheatmasstransfer.2008.02.008

Cited by 21 publications

(2 citation statements)

References 23 publications

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“…Due to the distorted local boundary layer on the surface, the ionic wind flow is therefore not limited by the "no-slip" effect on surfaces which subsequently provides better heat transfer compared to mechanical fans [4]. Recent studies involve investigations of the convective heat transfer using various electrode types and arrangements, as well as flow visualization of the induced ionic wind [5,6].…”

Section: Introductionmentioning

confidence: 99%

Forced Convective Heat Transfer of Ionic Wind on Different Surface Conditions

Von

Rong

Harun

2015

AMM

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The heat transfer enhancement of the forced convection due to ionic wind over different surface conditions including a smooth, rough ruface and a source array of rectangular blocks surface (representing electronic components) was studied. Under laminar flow, the highest heat transfer rate of 0.0736 W/m2.K per minute was observed for the source array surface. The average heat transfer coefficient during steady state of ionic cooling on smooth, rough and source array surfaces were observed to be 19.144 W/m2.K, 18.736 W/m2.K and 21.126 W/m2.K respectively. The heat transfer properties of ionic wind are similar to moving air, generating high heat transfer coefficient and Nusselt number on source array surface due to recirculation eddies.

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Section: Introductionmentioning

confidence: 99%

Forced Convective Heat Transfer of Ionic Wind on Different Surface Conditions

Von

Rong

Harun

2015

AMM

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“…Moreau and Touchard [1] experimentally investigated the influence of different parameters, including the polarity, the electrode geometry, the distance between electrodes, and the diameter of the tube, on the characteristics of ionic wind, and they found that the air speed generated from positive corona discharge is higher than negative one. Kasayapanand [2][3][4][5] conducted a series of numerical simulations of electric field effect on natural convection of air, and the results showed that the natural convection heat transfer of air could be greatly enhanced. Mahmoudi et al [6] experimentally and numerically investigated the natural convection heat transfer of an isothermal horizontal cylinder under the electrical field, and a blade edge emitter electrode was used.…”

Section: Introductionmentioning

confidence: 99%

3D Numerical Simulation of Heat Transfer of a Heated Plate under the Electric Field Generated by a Needle Electrode

Zhang

Zhao

et al. 2014

Mathematical Problems in Engineering

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A three-dimensional numerical model that couples the electric field, velocity field, and temperature field is developed based on the commercial code COMSOL Multiphysics. The influences of several factors on convective heat transfer on a heated plate in the electric field generated by a needle electrode are observed. The factors are the applied voltage, the distance between the two electrodes, and the size of the ground plate. The results show that applied voltage is one of the most important factors for the convection heat transfer. The convection heat transfer efficiency significantly increases with the improvement of the applied voltage. From the perspective of the model size, the decrease of the distance between two electrodes and the size of the plate could improve the average convection heat transfer coefficient. Smaller ionic wind device needs lower applied voltage and less electric energy to obtain the same average convection heat transfer coefficient as the bigger one, which provides the theoretical basis for the potential of miniaturizing the ionic wind cooling device.

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