An inverse problem in determining the optimal position for piezoelectric fan with experimental verification

Huang, Cheng Hung; Chen, Yung Fong; Ay, Herchang

doi:10.1016/j.ijheatmasstransfer.2012.05.037

Cited by 23 publications

(11 citation statements)

References 15 publications

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“…This agrees with the conclusions of previous studies reported by Huang et al [11] and Lin and Leu [15]. Ref.…”

Section: Numerical Analysissupporting

confidence: 94%

“…Ref. [11] also concludes that the optimal fan position occurs at approximately 3.5 mm below the center point of the fin, while in reference [15] the optimal installed position is at y/H = 0.625, where the top surface is heated.…”

Section: Numerical Analysismentioning

confidence: 99%

“…Recently, Huang et al [11] utilized the commercial package CFD-ACE+ [12] to build a three-dimensional computational model for piezoelectric fans and then used the Levenberg-Marquardt Method (LMM) [13] to estimate the optimal fan location for minimizing the maximum fin temperature. The simulations of numerical experiments show that, for all of the different original fan positions tested, the optimal fan position occurs at a singular position, which is 3.5 mm below the center point of the fin.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Determination of relative positions and phase angle of dual piezoelectric fans for maximum heat dissipation of fin surface

Huang

Fan

2016

International Journal of Heat and Mass Transfer

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“…This agrees with the conclusions of previous studies reported by Huang et al [11] and Lin and Leu [15]. Ref.…”

Section: Numerical Analysissupporting

confidence: 94%

Section: Numerical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determination of relative positions and phase angle of dual piezoelectric fans for maximum heat dissipation of fin surface

Huang

Fan

2016

International Journal of Heat and Mass Transfer

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“…Since then, many studies experimentally examined the performance of heat transfer enhancement under the actuation of a piezofan [3][4][5][6][7]. Some numerical studies were performed to investigate the flow fields and heat transfer performance of piezofans [8][9][10][11][12][13][14][15][16]. Their results revealed that the average maximum heat transfer augmentation and local maximum heat transfer augmentation can be increased by about 100% and 350%, respectively.…”

Section: Introductionmentioning

confidence: 99%

A Study of an Effective Heat-Dissipating Piezoelectric Fan for High Heat Density Devices

Lin

Jang

Leu³

2016

Energies

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Abstract:Heat dissipation per unit volume has grown rapidly, as the size of modern electronic devices has continued to decrease. The air flow induced by an oscillating cantilever blade enhances the heat transfer performance of high heat density devices. The heat transfer improvement mainly depends on the velocity magnitude and distribution of air streams induced by the vibrating blade. Accordingly, this study numerically and experimentally examines the time-varying flow characteristics of a vibrating cantilever for five blade types. The blades are rectangular or trapezoidal with various widths and actuated at various frequencies. The fluid domain is numerically discretized using a dynamic meshing scheme to model the three-dimensional time-varying vibrating blade. The experiment utilizes nine hot-wire velocity meters to measure the average velocities. The flow structure with streamlines and velocity contours of the induced air flow are determined at various section planes. The results show that a major maximum-velocity region appears around the blade tip and that four minor local-maximum-velocity regions appear at the four corners. In addition, the width and width ratio of the blade significantly affects the velocity distribution of the flow induced by the vibrating cantilever blade.

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“…At this specific spacing, the heat transfer was correlated only with the cantilever oscillation frequency and amplitude. Huang et al [6] used business software to build a 3-D computation model, and discussed the optimum position of piezoelectric fan for the vertical heating surface. Lin [7] used 3-D numerical calculation and experimental measurement to discuss the heat transfer and flow characteristics of heating plane resulted from the piezoelectric fan.…”

Section: Introductionmentioning

confidence: 99%

Moving-orientation and position effects of the piezoelectric fan on thermal characteristics of the heat sink partially filled in a channel with axial flow

Jeng

Liu

2015

International Journal of Heat and Mass Transfer

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An inverse problem in determining the optimal position for piezoelectric fan with experimental verification

Cited by 23 publications

References 15 publications

Determination of relative positions and phase angle of dual piezoelectric fans for maximum heat dissipation of fin surface

Determination of relative positions and phase angle of dual piezoelectric fans for maximum heat dissipation of fin surface

A Study of an Effective Heat-Dissipating Piezoelectric Fan for High Heat Density Devices

Moving-orientation and position effects of the piezoelectric fan on thermal characteristics of the heat sink partially filled in a channel with axial flow

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