This study investigates the thermal performance and entropy generation of five mini-channel heat sink (MCHS) configurations under a constant heat flux of 50 kW/m². The heat sinks, made of copper with water as the working fluid, are analyzed over a Reynolds number range of 600–1400. The effects of different fin geometries on heat transfer, pressure drop, and entropy production are evaluated using numerical simulations in COMSOL Multiphysics. Results indicate that increasing the Reynolds number enhances convective heat transfer but also raises the pressure drop. Among the proposed designs, Case 2 demonstrates the most efficient performance, achieving the lowest entropy generation and superior cooling, in agreement with the second law of thermodynamics. These findings highlight the importance of fin geometry optimization for improving MCHS efficiency.
Najafpour,A. (2025). Effect of Fin Geometry on Entropy Generation in Heat Sink: A Numerical Investigation. Journal of Microfluidic and Nanofluidic Research, 2(2), 120-127. doi: 10.22034/jmnr.2025.15488.1018
MLA
Najafpour,A. . "Effect of Fin Geometry on Entropy Generation in Heat Sink: A Numerical Investigation", Journal of Microfluidic and Nanofluidic Research, 2, 2, 2025, 120-127. doi: 10.22034/jmnr.2025.15488.1018
HARVARD
Najafpour A. (2025). 'Effect of Fin Geometry on Entropy Generation in Heat Sink: A Numerical Investigation', Journal of Microfluidic and Nanofluidic Research, 2(2), pp. 120-127. doi: 10.22034/jmnr.2025.15488.1018
CHICAGO
A. Najafpour, "Effect of Fin Geometry on Entropy Generation in Heat Sink: A Numerical Investigation," Journal of Microfluidic and Nanofluidic Research, 2 2 (2025): 120-127, doi: 10.22034/jmnr.2025.15488.1018
VANCOUVER
Najafpour A. Effect of Fin Geometry on Entropy Generation in Heat Sink: A Numerical Investigation. JMNR, 2025; 2(2): 120-127. doi: 10.22034/jmnr.2025.15488.1018
