What question did this study set out to answer?

Determine how progressive geometric modifications across microchannels and manifold plates influence pressure loss, heat transfer, and temperature uniformity in liquid-cooling systems.

August 20, 2026Applied Thermal EngineeringOpen Access

Enhancement of liquid cooling in microchannel heat sinks: numerical and experimental assessment of progressive geometric optimisation

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Authors

JOJorge M. OrtegaUniversity of Minho DODiogo P. OliveiraUniversity of Minho TCTiago CrispimUniversidade Federal do Ceará

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Implication

Experimental and numerical study demonstrates enhanced heat transfer and reduced pressure drop in optimized microchannel heat sinks, highlighting scalable designs for electronics cooling.

Key Points

Determine how progressive geometric modifications across microchannels and manifold plates influence pressure loss, heat transfer, and temperature uniformity in liquid-cooling systems.
Simulated single-phase laminar flow across Reynolds numbers ranging from 100 to 1,000 for rectangular, trapezoidal, and aligned/misaligned cross-hatch channels.
Fabricated selected microchannel and manifold configurations using laser microfabrication to experimentally validate numerical predictions.
Trapezoidal channel geometries decreased pressure drop compared to equivalent rectangular channel designs.
Misaligned cross-hatch configurations enhanced heat transfer and temperature uniformity by inducing flow mixing and thermal boundary layer redevelopment.
Experimental measurements of laser-fabricated cooling plates closely matched numerical thermo-hydraulic trends across full manifold configurations.

Cite This Study

Ortega et al. (2026) studied this question.

synapsesocial.com/papers/6a86b4cb8a91293e6a1cc505 https://doi.org/10.1016/j.applthermaleng.2026.132789

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Implication

Experimental and numerical study demonstrates enhanced heat transfer and reduced pressure drop in optimized microchannel heat sinks, highlighting scalable designs for electronics cooling.

Enhancement of liquid cooling in microchannel heat sinks: numerical and experimental assessment of progressive geometric optimisation

Discussion

Member takes

Implication

Key Points

Cite This Study

Enhancement of liquid cooling in microchannel heat sinks: numerical and experimental assessment of progressive geometric optimisation

Discussion

Member takes

Implication

Key Points

Cite This Study

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