A new method of thermal protection by opposing jet for a hypersonic aeroheating strut

Qin, Jiang; Ning, Dongpo; Feng, Yuqing; Zhang, Junlong; Feng, Shiyu; Bao, Wen

doi:10.1007/s11630-017-0940-9

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…The field synergy principle [1][2][3][4] and the theory of entropy generation extremum and entransy dissipation extremum for heat transfer optimization [5] are the most widely accepted fundamental theories since the beginning of the 21 st century. Whereas technical improvement mainly concerning the methods used in various scenarios with heat exchange, such as power stations [6], power battery [7], hypersonic heating structure [8], porous media [9][10][11], phase-change heat transfer [12] and electronic devices [13].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Dimples in Microchannel Heat Sink with Impinging Jets—Part B: the Influences of Dimple Height and Arrangement

Ming

Cai

Yang³

et al. 2018

J. Therm. Sci.

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The combination of a microchannel heat sink with impinging jets and dimples (MHSIJD) can effectively improve the flow and heat transfer performance on the cooling surface of electronic devices with very high heat fluxes. Based on the previous work by analysing the effect of dimple radius on the overall performance of MHSIJD, the effects of dimple height and arrangement were numerically analysed. The velocity distribution, pressure drop, and thermal performance of MHSIJD under various dimple heights and arrangements were presented. The results showed that: MHSIJD with higher dimples had better overall performance with dimple radius being fixed; creating a mismatch between the impinging hole and dimple can solve the issue caused by the drift phenomenon; the mismatch between the impinging hole and dimple did not exhibit better overall performance than a well-matched design.

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