A comprehensive note on thermally stratified flow and non-Fourier heat flux theory

Abstract

Original scientific paper https://doi.org/10.2298/TSCI171126140KHere an analysis is presented to investigate the characteristics of non-Fourier flux concept in flow induced by stretching cylinder. Unlike the convectional approach, the heat flux by Cattaneo-Christov theory is considered. Stagnation point flow in the presence of thermal stratification and temperature dependent thermal conductivity is addressed. Rheological properties are examined for hyperbolic tangent material. Theory of the boundary-layer is implemented for the formulation purpose. The relevant transformations yield the strong non-linear differential systems which are numerically computed. Plots are presented for the solution expressions of velocity and temperature. Surface drag force is calculated and discussed. Here velocity and temperature are enhanced for the larger curvature parameter. Larger values of thermal relaxation factor give rise to be decrease in temperature.

Analysis of entropy generation minimization in flow of Ree-Eyring nanofluid between two coaxially rotating disks

“…Inspired by the above literature survey of non-Newtonian fluid over a stretchable surface, the present research work aimed to explore the radiative nanomaterial flow of Ree-Eyring fluid subject to stretchable surface with entropy generation. Series solutions are developed via homotopy analysis method [24][25][26][27][28][29][30]. Furthermore, Heat and mass transfer rates and skin friction coefficient are numerically discussed and presented through tables.…”

A modified Fourier-Fick analysis for modeling non-Newtonian mixed convective flow considering heat generation

“…In addition, mixed convection, variable type conductivity/diffusivity and heat source characteristics are considered. Non-linear systems are tackled through homotopy algorithm [16][17][18][19][20][21][22][23][24][25]. The non-dimensional quantities are exhibited and deliberated.…”

Significance of improved Fourier-Fick laws in non-linear convective micropolar material stratified flow with variable properties

“…Christov [6] modified Cattaneo model [3] via insertion of upper-convected Oldroyd's derivative. Some researches elaborating flow subjected to Cattaneo-Christov (non-Fourier) heat flux are given in [7][8][9][10][11][12].…”