Modeling of Cattaneo-Christov double diffusions (CCDD) in Williamson nanomaterial slip flow subject to porous medium

Here magnetohydrodynamics (MHD) nanomaterial slip flow of Williamson fluid is addressed. The flow is discussed over a porous medium and generated via nonlinear stretching phenomenon. The behavior of heat and mass transport are discussed subject to Cattaneo-Christov double diffusions (CCDD). Mathematical modeling for both CCDD is performed under the basic concept of Fourier's and Fick's laws. The energy equation for the consider flow problem is developed using Brownian motion, dissipation and thermophoretic diffusion. Relevant transformations variables are utilized to convert the partial differential equations into ordinary ones. Flow parameters are discussed on the velocity, temperature and concentration through built-in-Shooting method. Skin friction is computed and discussed through bar chart versus Weissenberg number and slip parameter. It is concluded that the skin friction coefficient is decreased for higher values of Weissenberg number and slip parameter. Furthermore, velocity field decays against Weissenberg number, slip parameter and porosity parameter. (C) 2020 The Author(s). Published by Elsevier B.V.