Salient features of Dufour and Soret effect in radiative MHD flow of viscous fluid by a rotating cone with entropy generation

• Published in: International journal of hydrogen energy Vol. 45; no. 28; pp. 14552 - 14564
• Main Authors: Khan, Sohail A., Hayat, T., Ijaz Khan, M., Alsaedi, A.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 21.05.2020
• Subjects: Chemical reaction; Entropy generation; Rotating cone; Soret and Dufour effect; Viscous dissipation; Viscous fluid; Rotating cone; Chemical reaction; Viscous dissipation; Viscous fluid; Entropy generation; Soret and Dufour effect
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2020.03.123

Here physical characteristics of convective magnetohydrodynamic flow of viscous liquid subject to a rotating cone are discussed. Dissipation, Joule heating, thermal flux and heat generation/absorption are scrutinized in energy expression. Physical aspects of diffusion-thermo and thermo diffusion effect are deliberated. Thermo-diffusion is the mechanisms of transportation in which particles are transferred in a multi-factor mixture determined by temperature gradient. Furthermore irreversibility analysis is considered. Nonlinear partial differential system are reduced to ordinary one with the help of similarity variables. Here we implemented ND solve technique to get numerical results for given nonlinear system. Characteristics of influential variables for entropy optimization, velocity, concentration, Bejan number and temperature are scrutinized. Numerical outcomes of gradient of velocity and Nusselt and Sherwood numbers are examined through tabulated form. Velocity components are declined against higher velocity slip parameters. For larger estimation of heat generation and radiation parameters the temperature is upsurges. Entropy generation and Bejan number are boost up via rising values of diffusion and radiation parameters. For larger estimation of Brinkman number both Bejan number and entropy rate have opposite effect. Comparative studies of the current and previous results are discussed in tabularized form and have a good agreement. •Entropy optimization in MHD convective flow over a rotating cone is discussed.•Cone is rotating subject to angular velocity (Ω).•Diffusion-thermo and thermo diffusion effect are considered.•Chemical reaction is present.•Velocity slip effect is discussed.