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Second law analysis for mixed convection nanofluid flow in an inclined channel with convectively heated walls
Author(s) -
Tlau Lalrinpuia,
Ontela Surender
Publication year - 2020
Publication title -
heat transfer
Language(s) - English
Resource type - Journals
eISSN - 2688-4542
pISSN - 2688-4534
DOI - 10.1002/htj.21652
Subject(s) - bejan number , nanofluid , nusselt number , mechanics , homotopy analysis method , combined forced and natural convection , entropy (arrow of time) , materials science , thermodynamics , convection , heat transfer , physics , natural convection , nonlinear system , reynolds number , quantum mechanics , turbulence
In this study, entropy generation analysis for Cu–water nanofluid mixed convective flow in an inclined channel occupied with a saturated porous media with Navier slip and convective boundary conditions is explored. The governing equations composed of equations of velocity and temperature are nondimensionalized and then solved utilizing the technique of homotopy analysis. Temperature and velocity profile expressions are acquired, which are then used to calculate the entropy produced in the scheme. The impacts of the corresponding fluid parameters are addressed in‐depth on velocity, temperature, entropy generation, Bejan number, Nusselt number, skin friction, volume flow rate, and heat carried out by the fluid for 1 % nanofluid concentration. Entropy has been observed to be minimal in all cases just above the channel center and maximum at the channel's bottom wall. Fluid friction‐generated entropy has been discovered to have a higher influence on entropy generation. We also provide a comparative study with existing literature to validate our current results.