Analysis of Arrhenius activation energy in magnetohydrodynamic Carreau fluid flow through improved theory of heat diffusion and binary chemical reaction

Abstract

In this work, we addressed the characterization of stagnation-point Carreau fluid flow induced due to stretching of chemically reactive surface. The energy expression is incorporated with a new theory of heat diffusion named Cattaneo-Christov, which is an advanced form of Fourier's heat flux formula. The additional term of thermal relaxation time is arisen in Cattaneo-Christov model of heat diffusion. We considered modified Arrhenius energy function with chemical reaction effect. The theory of boundary layer is employed to govern the mathematical phenomenon. The ordinary differential system is obtained by the implementation of suitable similarity variables. The governing system of mathematical expressions is solved by using Runge-Kutta based MATLAB bvp4c package. The derived solutions are sketched for various values of physical constraints on quantities of interest. A comparative study is presented for validating the results. It is found that the larger value of the thermal relaxation parameter act as non-conductor. It also noted that the destructive binary reaction is favorable to enhance the species concentration.

Activation energy and binary chemical reaction on unsteady MHD Williamson nanofluid containing motile gyrotactic micro‐organisms

“…On accelerating the Arrhenius Activation energy , the solutal boundary layer thickness increases and thus the species concentration increases. The reason is that a higher activation energy results in a weaker rate of reaction, which resists the chemical reaction and this is consistent with Kumar et al 38 Figure 12 explains the influence of on the nanoparticle concentration profile. It is the ratio of thermal diffusivity to mass diffusivity and distinguishes fluid flows where there is instantaneous heat and mass transfer by convection.…”

Peristaltic Blood Flow of Couple Stress Fluid Suspended with Nanoparticles under the Influence of Chemical Reaction and Activation Energy

“…In view of the existing literature, one can feel the application of nanotechnology in medical science opens a new dimension for researchers to turn their attention towards the effective role of chemical reaction and activation energy [29][30][31], since nanoparticles help in treating different diseases by means of the peristaltic movement of blood. Such biological transport of blood helps to deliver drugs or medicine effectively to the damaged tissue or organ.…”

Characterization of Marangoni Forced Convection in Casson Nanoliquid Flow with Joule Heating and Irreversibility

“…Khan et al [14] discussed activation energy in Prandtl-Eyring nanomaterial with chemical reactions. Kumar et al [15] investigated the influence of activation energy in magnetohydrodynamic flows of Carreau liquids over a stretching surface. Activation energy and the entropy impact in tangent hyperbolic nanoliquid flows are presented by Khan et al [16].…”