A numerical study on heat transfer performance of microchannels with different surface microstructures

Liu, Y.; Chen, Jing; Jiang, Yuze; Li, W.Z.

doi:10.1016/j.applthermaleng.2010.11.015

Cited by 38 publications

(8 citation statements)

References 36 publications

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“…The axial heat transfer, surface roughness, viscous heating are also negligible. Wavy channel [9][10][11][12], branched channel [13][14][15], ribs, fins or rough elements [16][17][18][19] (such as triangular, rectangular, dimple elements and so on) have also been investigated, the rough elements method can strengthen the convection heat transfer without large pressure penalty and is a possible low-cost solution.…”

Section: Introductionmentioning

confidence: 99%

Parametric numerical study of the flow and heat transfer in microchannel with dimples

Gong

et al. 2016

International Communications in Heat and Mass Transfer

114

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The characteristics of flow and heat transfer in microchannel with dimples were numerically investigated. The geometric parameters of dimpled channel, including aspect ratio, dimple depth and dimple spacing, were independently studied under constant Reynolds number 500. A constant heat flux 1W/mm 2 was adopted in the central area at the bottom of the microchannel heat sink to simulate a high power device. In comparison to straight channels, dimpled surface reduced the local flow resistance and also improved thermal performance of micro-channel heat sink. Compared to flat channel case, the optimal dimpled case have 3.2K decrease of temperature, 15% gain of Nusselt number and 2% reduce of pressure drop.

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Section: Introductionmentioning

confidence: 99%

Parametric numerical study of the flow and heat transfer in microchannel with dimples

Gong

et al. 2016

International Communications in Heat and Mass Transfer

114

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“…They found that the heat transfer performance improves 9 % to 21 % for laminar flow and 39 % to 90 % for turbulent flow, while the pressure drop increases 34 % to 83 % for laminar flow and 61 % to 169 % for turbulent flow. Liu et al [21] performed a numerical study on the heat transfer performance of microchannels with different surface microstructures. The results show that the shield-shaped groove microchannel has the highest heat exchange performance.…”

Section: • Velocity Takes Lower Values With the Increase Of The Nanopmentioning

confidence: 99%

Slip Flow of Nanofluids between Parallel Plates Heated with a Constant Heat Flux

Öztürk

Kahveci

2016

SV-JME

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The steady fully developed laminar flow and heat transfer of an electrically conducting viscous fluid between two parallel plates heated with a constant heat flux is investigated analytically in the presence of a transverse magnetic field. The momentum and energy equations are solved under the first order boundary conditions of slip velocity and temperature jump. The effects of the Knudsen number, Brinkman number and Hartmann number on the velocity and temperature distribution and heat transfer characteristics are discussed.

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“…Liu et al [13] used CFD (computational fluid dynamics) and LB (lattice Boltzmann) approaches to the numerical study of forced convection heat transfer occurring in microchannels. The results implied that the shield shaped groove microchannel possessed high heat exchange performance with the increment of Nusselt number at about 1.3 times of the plain surface structure.…”

Section: Introductionmentioning

confidence: 99%

Optimum design of triangular shaped micro mixer in micro channel heat sink

Kuppusamy

Ghazali

Saidur

et al. 2015

International Journal of Heat and Mass Transfer

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A numerical study on heat transfer performance of microchannels with different surface microstructures

Cited by 38 publications

References 36 publications

Parametric numerical study of the flow and heat transfer in microchannel with dimples

Parametric numerical study of the flow and heat transfer in microchannel with dimples

Slip Flow of Nanofluids between Parallel Plates Heated with a Constant Heat Flux

Optimum design of triangular shaped micro mixer in micro channel heat sink

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