Exploration of double diffusive convection phenomena of viscous nanofluid with consideration of solar radiative flux and MHD impact through the peristaltic channel

Abstract

The concerning article scrutinized the incompressible Casson fluid flow through the peristaltic path under the influence of MHD and double-diffusive convection with the association of variable conductivity, viscosity and radiative flux. Buongiorno’s model is applied to keenly observe the features of nanoparticles. To allegorize the consequences of a chemical reaction the “Arrhenius law” is manipulated. The differential equations of momentum, heat, chemical reaction and double diffusivity are solved numerically by manipulating the convenient transformation. We employ the MATLAB bvp4c approach to draw the graphs for generalized equations and the effects of relevant parameters on the flow characteristics are examined. Our research work exhibits the impact of solutal, thermal and nanoparticle Grashof numbers on the velocity profile. The Lewis number and activation energy manifest the opposite behavior for the rate of the chemical reaction. The temperature gradient declines in the pumping segment while rising up during the pumping less region by varying the Brownian and thermophoresis diffusion parameters. The results show that temperature diminish with the magnification in because the Prandtl number governs the relative thickness of the thermal and momentum boundary layers. The maximal region of the peristaltic flow’s diffusive convection grows as the Lewis number rises. Moreover, the effect of a magnetic field is elaborated with the aid of describing the graph that the presence of a magnetic field dwindles the velocity of fluid.