Impact of stratifications and chemical reaction on convection of a non-Newtonian fluid in a Riga plate with thermal radiation and Cattaneo-Christov flux

• Published in: Journal of thermal analysis and calorimetry Vol. 147; no. 11; pp. 6519 - 6535
• Main Authors: Mallawi, F. O. M., Eswaramoorthi, S., Sivasankaran, S., Bhuvaneswari, M.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.06.2022; Springer; Springer Nature B.V
• Subjects: Analysis; Analytical Chemistry; Boundary layers; Chemical reactions; Chemistry; Chemistry and Materials Science; Coefficient of friction; Convective flow; Exact solutions; Fluid flow; Homotopy theory; Inorganic Chemistry; Mass transfer; Mathematical analysis; Measurement Science and Instrumentation; Newtonian fluids; Non Newtonian fluids; Nusselt number; Parameters; Physical Chemistry; Polymer Sciences; Radiation; Shear stress; Skin friction; Stratification; Thermal radiation; Viscoelastic fluids; Viscoelasticity; Viscous fluids; Riga plate; Non-newtonian fluid; Cattaneo-Christov heat/mass flux; Thermal radiation; Chemical reaction
• DOI: 10.1007/s10973-021-10930-z
• ISSN: 1388-6150

The article explains the significance of convective flow of a chemically reacting non-Newtonian fluid over a Riga plate with the presence of heat absorption/generation and double stratification. The Cattaneo-Christov heat and mass flux’s equations are utilized to frame the energy and concentration equations. The governing nonlinear boundary layer systems are altered into a couple of ordinary differential system. we employed the homotopy analysis method for obtaining the analytical solution of these resultant system. Analytical explanation of skin friction coefficient, local Nusselt number and local Sherwood number are calculated and described in tabular as well as graphical forms. The contributions of distinct physical flow parameters on velocity, temperature and concentration profiles are shown and reviewed. The obtained results are compared with published results in existing literature and got good agreement. We found that larger skin friction coefficient is obtained from Riga plate compared to the stationary plate. The plate shear stress is high in viscoelastic fluid compared to the second grade fluid and viscous fluid. The larger Nusselt number is occurred in second grade fluid compared to the viscoelastic fluid and viscous fluid. The mass transfer gradient rises with raising the values of the chemical reaction parameter with small amount of solutal stratification parameter.