Peristaltic flow of nanofluid in a deformable channel with double diffusion

Abstract

Fluid dynamics combined with double diffusive phenomenon in a deformable channel of peristaltically moving walls is investigated in this paper. The variable gap between heated walls is filled with nanofluids. The purpose is to examine the combined effects of surface deformation and peristaltic movement of the walls on the nanofluid flow along with coupled double diffusion analysis in a channel. We emphasized on the behavior of peristaltic flow with heat/mass transfer for nanofluid in the deformable channel whose walls are permeable and contracting or expanding in the normal direction. Nanofluids are widely utilized in industrial processes to boost the thermal diffusivity and conductivity. We have analyzed the effects of different involved parameters such as Reynolds number, surface deformation parameter, Prandtl number, wave number, Brownian and thermophoretic diffusion parameters on the flow fields, pressure distribution and concentration with the help of graphs. The results are shown graphically and discussed physically. It is noted that deformation increases the axial velocity and temperature of the fluid. For special cases, the current simulation and its solution are exactly matched with the classical models of viscous flow in a deformable channel of peristaltically moving walls.