Abstract
This article investigates the flow and mass transportation characteristics in the peristaltic motion configured by a heated curved channel. The coupling between momentum and energy equation is achieved using the Boussinesq approximation. The equations describing the flow and heat/mass transfer are developed using curvilinear coordinates. A reduction of these equations is made based on the lubrication approximation. The reduced linear ordinary differential equations are integrated numerically using an implicit finite difference scheme. The effects of thermal and concentration Grashof numbers, Hartmann number, Brinkmann number, and curvature parameter on longitudinal velocity, pressure rise, temperature, and mass concentration are analyzed in detail. It is found that the temperature field is enhanced with an increase in the thermal Grashof number and Hartmann number, while the mass concentration decreases with an increase in the thermal Grashof number and Hartmann number. The flow patterns in the channel illustrating the effects of Grashof numbers, Brinkmann number, and Hartmann number are also displayed. It is observed that flow movements become intense for greater values of Brinkman number, thermal Grashof number, and Hartmann number.
Highlights
The flow problems related to the mixed convection flows encountered valuable applications in engineering and industrial areas
We shall first present a brief review of the recent literature on mixed convective boundary layer flows and turn back to important recent literature on mixed convective peristaltic flows
Ramachandran et al.1 utilized the influence of mixed convection features in the stagnation point study of the moving heated surface for which the wall temperature and the surface heat flux were assumed to be of a variable nature
Summary
The flow problems related to the mixed convection flows encountered valuable applications in engineering and industrial areas. Prasad et al. investigated mixed convective flow of fluid with variable properties over a non-linear stretching surface. Vajravelu et al. presented a comprehensive study on mixed convection with heat and mass transfer of Ostwald-de Waele fluid over a vertical stretching sheet. Abbas et al. examined the mixed convective stagnation-point flow of a Maxwell fluid toward a vertical stretching surface. Jamaludin et al. examined a three-dimensional mixed convection stagnation-point flow over a permeable vertical surface. The thermally saturated and mixed convective flow of viscous fluid with the interesting features of viscous dissipation and Joule heating through a porous stretched surface was numerically investigated by Chen.. The mixed convection features regarding the investigation of stagnation point flow encountered by a lubricated surface was numerically explored by Mahmood et al.. Zhang et al. investigated mixed convection flow of nanofluid with gyrotactic microorganisms encountered by rotating circular plates
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