Significance of activation energy in radiative peristaltic transport of Eyring Powell nanofluid
Abstract In this article we illustrate the features of first order chemical reaction and activation energy on MHD peristaltic transport of Eyring Powell nanofluid. Modeling and analysis in the presence of heat generation/absorption are studied. Energy equation is modeled by considering thermal radiation, Joule heating and dissipation. Velocity slip is imposed on flexible channel walls. Heat convective condition is analyzed. For mathematical modeling the Buongiorno nanofluid model is used. Thermophoresis and Brownian diffusion are under consideration. The governing partial differential equations are first reduced to the system of ordinary differential equations by applying relevant transformations and then shooting technique is used to obtain the numerical results. Relevant problem for low Reynold number and long wavelength is reduced. Numerical results for velocity, temperature, concentration, heat transfer coefficient and trapping are analyzed. Expressions for coefficient of skin friction, Nusselt and Sherwood numbers at the channel wall are examined. Influence of Eyring Powell variables on velocity shows opposite behavior. Velocity of fluid increases against velocity slip parameter. Temperature increases for higher values of thermophoresis and Brownian motion while it decays against thermal Biot number. Concentration enhances for higher values of radiation and activation energy variables. Heat transfer coefficient is an increasing function of heat generation.