This article presents the exact solutions of the velocity and temperature fields for a steady fully developed magnetohydrodynamic flow of a viscous incompressible and electrically conducting fluid between two horizontal concentric cylinders. Our study focuses on the influence of the Hartmann number, Brinkman number, Péclet number and inner radius on the fluid temperature field, entropy generati...

Numerical investigation is carried out to predict the entropy generation for combined natural convection heat and mass transfer in a two dimensional porous cavity subjected to a magnetic field. The Darcy model is used in the mathematical formulation of the flow in porous media. The mathematical model is derived in dimensionless form. The governing parameters arise in the mathematical model are ...

Literature about entropy generation analysis of a wavy enclosure is scare. In this paper. a FORTRAN cod using an explicit finite-volume method was provided for estimating the entropy production due to the natural convection heat transfer in a cosine wavy absorber solar collector. The volumetric entropy generation terms both the heat transfer term and the friction term were straightly calculated...

Abstract This work investigates heat transfer and entropy generation of a turbulent flow an Al 2 O 3 –Cu/water hybrid nanofluid in plain tube (PT) with classical (TPT) elliptical‑cut twisted tape (TECT) inserts. The pressure drop are investigated numerically at Re (7000–15,000), mass concentration (1–4%), the inlet temperature fluid (300 K). Further, total Bejan number examined = 7000 4%. obtai...

The two-dimensional, time-independent conjugate natural convection flow and entropy generation are numerically investigated in three different cases of a wavy conducting solid block attached to the left wall square cavity. A hybrid nanofluid with titania (TiO2) copper (Cu) nanoparticles base fluid water part is considered presence uniform inclined magnetic field. leftmost cavity hot one rightmo...

In the current work optimization of double pipe fin-pin heat exchanger has been studied. The effective parameters those are controlling the heat exchanger performance are divided in two categories; geometrical and operating conditions. Using the Brent’s optimization algorithm and handling the thermodynamically design concept, one can minimize entropy generation in different length of heat excha...

A numerical investigation of entropy generation in laminar forced convection of gas flow over a backward facing step in a horizontal duct under bleeding condition is presented. For calculation of entropy generation from the second law of thermodynamics in a forced convection flow, the velocity and temperature distributions are primary needed. For this purpose, the three-dimensional Cartesian co...

This study addresses CuO - TiO 2 /CMC-water hybridnano-liquid in the influence of mixed convection flow and thermal radiative past a stretchable vertical surface. Cross nanofluid containing Titanium dioxide ( ) , Copper Oxide C u O are scattered base fluid kind CMC water. In addition, theirreversibility analysis is also examined current problem. A suitable transformation utilized to transmute m...