Parametric study of nanofluid jet impingement cooling of protruding heaters with porous medium
by Chinmayee Behera
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 21, No. 6, 2021

Abstract: In the present work fluid flow and thermal behaviour of a nanofluid jet in connection with forced convection cooling of an array of discrete protruded heaters fixed on an impingement wall and embedded in a porous layer has been investigated for various channel heights (H/L), Darcy numbers (Da), porosities (ε) and nanoparticle volume fractions (Φ). Maximum increment in Nuavg has been found to be 15.7% along the first heater for Da = 10−4. On the contrary, the minimum value of the increment of 0.3% is observed along the second heater at Da = 10−5 in both cases for a fixed value of Φ = 6%. However, the effect of variation in porosity variation on enhancement of heat transfer is not discernible except on the fourth heater where increment of Nuavg is 33.3% at ε = 0.5 and Φ = 6%.

Online publication date: Tue, 30-Nov-2021

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