Effect of Cattaneo-Christov heat flux on Jeffrey fluid flow with variable thermal conductivity

• Main Authors: Tasawar Hayat, Mehwish Javed, Maria Imtiaz, Ahmed Alsaedi
• Format: Article
• Language: English
• Published: Elsevier 2018-03-01
• Series: Results in Physics
• Online Access: http://www.sciencedirect.com/science/article/pii/S2211379717314249

This paper presents the study of Jeffrey fluid flow by a rotating disk with variable thickness. Energy equation is constructed by using Cattaneo-Christov heat flux model with variable thermal conductivity. A system of equations governing the model is obtained by applying boundary layer approximation. Resulting nonlinear partial differential system is transformed to ordinary differential system. Homotopy concept leads to the convergent solutions development. Graphical analysis for velocities and temperature is made to examine the influence of different involved parameters. Thermal relaxation time parameter signifies that temperature for Fourier’s heat law is more than Cattaneo-Christov heat flux. A constitutional analysis is made for skin friction coefficient and heat transfer rate. Effects of Prandtl number on temperature distribution and heat transfer rate are scrutinized. It is observed that larger Reynolds number gives illustrious temperature distribution. Keywords: Cattaneo-Christov heat flux model, Jeffrey fluid, Variable thickness, Variable thermal conductivity