Impact of Non-linear Radiation on MHD Non-aligned Stagnation Point Flow of Micropolar Fluid Over a Convective Surface

• Published in: Journal of non-equilibrium thermodynamics Vol. 43; no. 4; pp. 327 - 345
• Main Authors: Anantha, Kumar K, Sugunamma, V, Sandeep, N
• Format: Journal Article
• Language: English
• Published: Berlin De Gruyter 25.10.2018; Walter de Gruyter GmbH
• Subjects: Biot number; convection; convective surface; Flow equations; Fluid dynamics; Fluid flow; Friction factor; Magnetohydrodynamics; MHD; micropolar fluid; Micropolar fluids; Newtonian liquids; Non Newtonian liquids; non-aligned stagnation point flow; Parameters; Runge-Kutta method; Stagnation point; Transport; variable heat source/sink; Velocity distribution
• ISSN: 0340-0204; 1437-4358
• DOI: 10.1515/jnet-2018-0022

We aimed at examining the magnetohydrodynamic (MHD) radiative non-aligned stagnation point motion of non-Newtonian liquid over a stretched surface. The heat transfer mechanism is investigated in the presence of variable heat sink/source, non-linear Rosseland approximation and Biot number. Appropriate transmutations are exploited to metamorphose the flow equations into ODEs. The acquired non-linear ODEs are highly coupled. These are tackled with the consecutive implication of fourth-order Runge–Kutta and shooting techniques. The variations of flow governing parameters on the dimensionless velocity, micro-rotation and temperature plus the measure of heat transport, couple stress coefficient and friction factor are thoroughly explained using plots and tables. Outcomes stipulate that increasing the values of the stretching ratio parameter causes the thermal field to decline and the velocity field to inflate. Also, an upsurge in the micropolar parameter produces an increase in the rate of heat transport but an opposite outcome is detected with the couple stress coefficient. To the best of our knowledge the non-orthogonal stagnated motion of micropolar liquid with radiation as non-linear and variable heat source/sink has never before been scrutinized.