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A Miniaturisation is an advance micro-technology of size reduction of handheld electronic devices which significantly enhance their performance though with a substantial increase in a thermal generation. Quick and efficient dissipation of the heat flux ensures reliability and prevent premature failure. This work employs simultaneous passive techniques of using nanofluid and corrugated minichannel configuration on forced convection heat to improve hydro-thermal performance and examine the effect of nanofluids on heat transfer and pressure drop. The CFD analysis is conducted by FLUENT software using two-phase mixture model under a uniform heat flux for two different water-based nanofluids with volume fractions of 0.005–0.03 and the range of Reynolds numbers 5000–10000. Validation of the numerical results with existing data in the literature displays a good agreement with a fair deviation. The results indicated that the heat transfer rates and wall shear stress increase with the increase of the nanofluid volume concentration. Besides, Heat transfer coefficient appreciates by about 39% at 3vol% with an increase of Re from 5000 to 10000 for both nanofluids. In contrast, the friction factor increases and causes a fair pressure drop. Hence passive enhancement techniques used indicated high suitability for hydro-thermal performance in compact electronic devices.

Numerical investigation of Two-phase Turbulent forced convection heat transfer and flow of nanofluids in a non-parallel wall minichannel heat sink