The effect of the number and configuration of flexible vortex generators on heat transfer inside a three dimensional microchannel

IF 6.1 2区工程技术 Q2 ENERGY & FUELS

Applied Thermal Engineering Pub Date : 2025-03-07 DOI:10.1016/j.applthermaleng.2025.126170

Mahdi Sheikhizad Saravani, Hamed Mohaddes Deylami, Mohammad Naghashzadegan

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引用次数: 0

Abstract

Enhancing heat transfer while minimizing pressure drop is a crucial challenge in micro-scale thermal systems, particularly in high-performance cooling applications. This study investigates the impact of flexible vortex generators (FVGs) on microchannel thermal–hydraulic performance, addressing the limitations of previous rigid designs. Unlike prior studies that primarily examined fixed vortex generators, this work explores the effects of FVGs with three distinct configurations (in-line, staggered zigzag, and opposed wall) and varying numbers (one to three). The Arbitrary Lagrangian-Eulerian (ALE) method is employed to model fluid–solid interactions and evaluate heat transfer enhancement. Results reveal that the staggered zigzag configuration with two FVGs yields the highest performance, increasing the performance evaluation criterion (PEC) by 16% compared to a smooth microchannel. Further optimization of FVG spacing using Response Surface Methodology (RSM) enhances PEC to 1.288. These findings highlight the significance of FVG configuration and spacing in optimizing thermal efficiency and provide valuable insights for designing next-generation microchannel cooling systems.

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.