Effects of MHD on Modified Nanofluid Model with Variable Viscosity in a Porous Medium

Abstract

A computational simulation for two-dimensional steady flow of modified nanofluid over an exponential stretching surface in a porous medium with magnet hydrodynamics and variable viscosity is presented in this study. Modified nanofluids are generalization of both hybrid nanofluids and simple nanofluids. Here, we consider three nanoparticles which drastically enhance the thermal conductivity of nanofluid. The viscous model associated with variable viscosity and MHD flow is employed. Well-known similarity transformations are utilized to convert the partial differential equations to system of ordinary differential equations. These converted equations are solved by utilizing the numerical technique Runge-Kutta-Fehlberg method. The impacts of variable viscosity, porosity parameter, Nusselt number, thermal and velocity slip, skin friction coefficient, solid nanoparticle, and magnetic field are observed. The computational results accomplished in the present investigation are validated and felt to be a good agreement with decayed results. It is highlighted that modified nanofluid model enhances the heat transfer rate much higher than the case of hybrid nanofluid and simple nanofluid model.

Transportation of Al2O3-SiO2-TiO2 modified nanofluid over an exponentially stretching surface with inclined magnetohydrodynamic

“…In continuation to this hypotheses researchers have started to prepare a mixture three different nanoparticles suspended in a base fluid called modified nanofluid to optimize the heat transfer capacity. Nadeem et al [9] studied the heat transportation phenomenon on modified nanofluid in porous medium with MHD, and established that modified nanofluids are more effective in heat transfer then hybrid and nanofluid cases. Furthermore Nadeem et al [10] presented, modified nanofluids flow through a stretching Rega plate where viscosity is temperature dependent.…”

A Combined Convection Carreau–Yasuda Nanofluid Model over a Convective Heated Surface near a Stagnation Point: A Numerical Study

“…In recent years, technical advances have made improvements in the rheological properties of cooling fluids, and the manufacture of a steady solid-liquid suspension called nanofluid has optimized the thermal performance of industrial instruments and heat exchangers [1]. erefore, several researchers have reported enhancement in heat transfer through nanofluids [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Hybrid Nanofluid Flow over a Permeable Shrinking Sheet Embedded in a Porous Medium with Radiation and Slip Impacts

“…They found that Cu-Al 2 O 3 /water has greater heat transfer rate than nanofluid and regular fluid for some of the investigated parameters. In addition, a considerable amount of previous works on hybrid nanofluid over a porous medium have been successfully reported (e.g., [31][32][33][34][35]).…”