THERMAL SCIENCE

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Thermal Science - Online First

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Aiyun Wang

,

Zhongliang Pan

online first only

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 microchannels, a new triangular cavity M-type pin complex microchannel heat sink structure design is proposed. Firstly, we take the distance between the cavity center and the pin center of the microchannel heat sink, the pin width and the pin angle as design variables. The enhanced heat transfer factor of the microchannel 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 microchannel 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 microchannel 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 microchannel and provide an important reference for the subsequent microchannel 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
REFERENCES
  1. Ohadi, M., et al., A comparison analysis of air, liquid, and two-phase cooling of data centers, 2012 28th Annual IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), San Jose, CA, USA, 2012, Vol. 1, pp. 58-63
  2. Tuckerman, D. B., Pease, R. F. W., High-performance heat sinking for VLSI, IEEE Electron Device Letters, 2 (1981), 5, pp.126-129
  3. Vinoth, R., Senthil, K. D., Numerical study of inlet cross-section effect on oblique finned micro channel heat sink, Thermal Science, 22 (2018), 6, pp. 2747-2757
  4. Acharya, S., Thermo-fluidic analysis of microchannel heat sink with inline/staggered square/elliptical fins, International Communications in Heat and Mass Transfer, 147 (2023), pp.106961
  5. Wen, H. ,et al., Heat transfer performance study of microchannel heat sink with composite secondary channels, International Communications in Heat and Mass Transfer, 143 (2023), pp.106718
  6. Wu, H. et al., Numerical study on flow and heat transfer characteristics in manifold microchannel heat sinks with rectangular restrictors, International Journal of Heat and Fluid Flow, 114 (2025), pp.109823
  7. Hu, C., et al., Optimizing the performance of microchannel heat sinks: Effects of trapezoidal cover plate on flow boiling heat transfer and stability, International Journal of Heat and Mass Transfer, 244 (2025), pp.126942
  8. Hajialibabaei, et al., Experimental and numerical study on heat transfer performance of wavy channel heat sink with varying channel heights, International Communications in Heat and Mass Transfer, 148(2023), pp.107044
  9. Shi, et al., Optimal design on irregular polygon topology for the manifold micro-pin-fin heat sink, International Communications in Heat and Mass Transfer, 141(2023), pp.106574
  10. Kamsuwan, C., et al., Enhancing performance of oblique double layer plate microchannel heat exchanger by computational fluid dynamics: Design and performance optimization, International Journal of Heat and Mass Transfer, 242 (2025), pp.126865
  11. Fathi, et al., Bifurcated divergent microchannel heat sinks for enhanced micro-electronic cooling, International Communications in Heat and Mass Transfer, 146 (2023), pp.106868
  12. Kang, et al., Investigation of heat transfer performance of the manifold microchannel heat sink with different interface configurations, International Communications in Heat and Mass Transfer, 159 (2024), pp.107807
  13. Amit, et al., Heat transfer characteristics of pulsatile flow through microchannel with heat-spots: Mimicking heat generation in the blood vessels, International Communications in Heat and Mass Transfer, 159(2024), pp.108296
  14. Liu, et al., Heat transfer enhancement of latent functional thermal fluid in microchannel with pin fins, International Journal of Heat and Mass Transfer, 244(2025), pp.126921
  15. Zhou, Y., et al., Numerical analysis of enhanced heat transfer and nanofluid flow mechanisms in fan groove and pyramid truss microchannels, International Journal of Heat and Fluid Flow, 109 (2024), pp.109559
  16. Bouaraour, K., et al., Mixed convection analysis of nanofluid flow inside an indented micro-channel, Thermal Science, 28 (2024), 5B, pp. 4321-4331
  17. Jiang, M., et al., Optimization of open micro-channel heat sink with pin fins by multi-objective genetic algorithm, Thermal Science, 26 (2022), 4B, pp. 3653-3665
  18. Rabiee, et al., Multi-objective optimization of rectangular microchannel heat sink based on entropy generation and hydro-thermal performance using NSGA-II algorithm, International Communications in Heat and Mass Transfer, 149 (2023), pp.107140
  19. Wu, B., et al., Constructal design of a hybrid heat sink with rectangular microchannel and porous fin in a 3D electronic device with artificial neural-network, NSGA-II and different decision-making methods, International Communications in Heat and Mass Transfer, 158 (2024), pp.107954
  20. Zhang, et al., Multi objective optimization of manifold microchannel heat sink with staggered microchannels, International Communications in Heat and Mass Transfer, 159(2024), pp.108106
  21. Cheng, et al., Three-dimensional numerical investigation on flow and heat transfer characteristics and multi-objective optimization of interconnected microchannels, International Communications in Heat and Mass Transfer, 159(2024), pp.108102
  22. Wang, Y., Qi, C. Multi-objective optimization on thermal-hydraulic performance of symmetrical hierarchical microchannel heat sinks, Applied Thermal Engineering, 271 (2025), pp.126309
  23. Alfellag, M. A., et al., Optimal hydrothermal design of micro-channel heat sink using trapezoidal cavities and solid/slotted oval pins, Applied Thermal Engineering, 158 (2019), pp.113765
  24. Webb, R. L. Performance evaluation criteria for use of enhanced heat transfer surfaces in heat exchanger design, International Journal of Heat and Mass Transfer, 24(1981),4, pp.715-726
  25. Jiang, M., et al., Optimization of micro-channel heat sink based on genetic algorithm and back propagation neural network, Thermal Science, 27 (2023), 1A, pp. 179-193
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Optimized design of complex microchannel heat sink structure with triangular cavity m-type pins