Synergistic effects of vortex generators and elastic walls on enhancement of heat transfer in microchannels

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-03-13 DOI:10.1016/j.icheatmasstransfer.2025.108855

Farzad Havasi , Seyyed Hossein Hosseini , Sajjad Ahangar Zonouzi , Abdolhamid Azizi

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引用次数: 0

Abstract

Microchannel heat sinks are highly effective methods for thermal management in various applications, such as electronic cooling, power generation, and microfluidics. There are no studies in the existing literature regarding the influence of integrating elastic walls and vortex generators on the thermal efficiency of microchannels. This study accomplished a set of reliable numerical simulations to evaluate the influences of elastic walls and different vortex generators on flow dynamics and heat transfer, to enhance microchannel performance. Consequently, the Arbitrary Lagrangian–Eulerian method was applied for all simulations. Therefore, five microchannel configurations were tested: a standard microchannel, one featuring a circular vortex generator, another with an elastic wall, and a design that integrates elastic walls with both circular and crescent vortex generators. The dynamics and heat transfer within these systems were carefully examined and assessed. The numerical findings indicated that the updated design featuring two crescent-shaped vortex generators and a flexible wall improves the heat transfer rate by approximately 20.15 %, resulting in a thermal performance ratio (TPR) of 1.203. This study introduces a novel design approach that significantly improves thermal efficiency and provides valuable insights for upcoming uses in microchannels.

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.