Parametric study of nanofluid jet impingement cooling of protruding heaters with porous medium Online publication date: Tue, 30-Nov-2021
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%.
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