THERMAL SCIENCE

International Scientific Journal

Aiyun Wang

,

Zhongliang Pan

OPTIMIZED DESIGN OF COMPLEX MICROCHANNEL HEAT SINK STRUCTURE WITH TRIANGULAR CAVITY M-TYPE PINS

ABSTRACT
In order to further improve the heat dissipation performance of micro-channels, a new triangular cavity M-type pin complex micro-channel heat sink structure design is proposed. Firstly, we take the distance between the cavity center and the pin center of the micro-channel heat sink, the pin width and the pin angle as design variables. The enhanced heat transfer factor of the micro-channel heat sink is used as the objective function. Secondly, in this paper, a quadratic regression model between the independent variables and the enhanced heat transfer factor of the micro-channel radiator is established by the response surface method, and the design variables are optimized by combining the genetic algorithm to maximize the enhanced heat transfer factor. The results show that the optimized micro-channel heat sink can achieve the optimal distribution of pressure field and temperature field, and the enhanced heat transfer factor can achieve the optimal value, which can significantly improve the heat dissipation performance of the micro-channel and provide an important reference for the subsequent micro-channel optimization design.
KEYWORDS
microchannel heat sink, pins, enhanced heat transfer factor, response surface, genetic algorithm
PAPER SUBMITTED: 2025-05-17
PAPER REVISED: 2025-07-29
PAPER ACCEPTED: 2025-08-05
PUBLISHED ONLINE: 2025-09-13
DOI REFERENCE: https://doi.org/10.2298/TSCI250517157W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2026, VOLUME 30, ISSUE No. 2, PAGES [1389 - 1401]
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Optimized design of complex microchannel heat sink structure with triangular cavity m-type pins

© 2026 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence