Title:Optimal Homotopic Exploration of Features of Cattaneo-Christov Model
in Second Grade Nanofluid Flow via Darcy-Forchheimer Medium Subject
to Viscous Dissipation and Thermal Radiation
Volume: 25
Issue: 14
Author(s): Ghulam Rasool, Anum Shafiq*, Yu-Ming Chu, Muhammad Shoaib Bhutta and Amjad Ali
Affiliation:
- School of
Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, P.R. China
Keywords:
Forchheimer medium, viscous dissipation, stretching surface, nanofluid, cattaneo-christov model, oHAM.
Abstract:
Introduction: In this article, Optimal Homotopy Analysis Method (oHAM) is used for
the exploration of the features of the Cattaneo-Christov model in viscous and chemically reactive
nanofluid flow through a porous medium with stretching velocity at the solid/sheet surface and free
stream velocity at the free surface.
Methods: The two important aspects, Brownian motion and Thermophoresis, are considered.
Thermal radiation is also included in the present model. Based on the heat and mass flux, the Cattaneo-
Christov model is implemented on the Temperature and Concentration distributions. The
governing Partial Differential Equations (PDEs) are converted into Ordinary Differential Equations
(ODEs) using similarity transformations. The results are achieved using the optimal homotopy
analysis method (oHAM). The optimal convergence and residual errors have been calculated to
preserve the validity of the model.
Results: The results are plotted graphically to see the variations in three main profiles. i.e. momentum,
temperature and concentration profile.
Conclusion: The outcomes indicate that skin friction enhances due to the implementation of the
Darcy medium. It is also noted that the relaxation time parameter results in enhancement of the
temperature distribution. Thermal radiation enhances the temperature distribution and so is the case
with skin friction.