Thermal radiation effect on unsteady threedimensional MHD flow of micropolar fluid over a horizontal surface of a parabola of revolution  

作　　者：S.R.R.Reddy P.Bala Anki Reddy 

机构地区：[1]Center for Nonlinear Systems,Chennai Institute of Technology,Chennai,600069,T.N.,India [2]Department of Mathematics,S.A.S.,Vellore Institute of Technology,Vellore,632014,T.N.,India

出　　处：《Propulsion and Power Research》2022年第1期129-142,共14页推进与动力（英文）

基　　金：The author,S.R.R.Reddy wishes to thanks the Center for Nonlinear Systems,Chennai Institute of Technology,India,vide funding number CIT/CNS/2021/RD/064 for partially funded of this work。

摘　　要：This paper explores the time-dependent magnetohydrodynamics(MHD)micropolar fluid flow over a three-dimensional variable stretching surface in the occurrence of radiation effect.The model time-dependent partial differential equations(PDE’s)in three independent variables are transformed into ordinary differential equations(ODE’s)by the suitable selfsimilarity variables.Homotopy perturbation method(HPM)and Runge-Kutta(RK)4^(th) order method along with shooting technique are used in the present model.And also,HPM results are compared with Runge-Kutta(RK)4^(th) order method along with the shooting technique.The velocity,micro rotation in x and y directions,temperature,skin friction factor and heat transfer rates are examined for the emerging parameters.The velocity profiles and momentum boundary layer thickness intensification with increasing values of the vortex viscosity parameter.The higher value of a magnetic parameter declines the skin friction coefficient.This type of investigation may be profitable to the polymer fluids,exotic lubricants,electronic chips,artificial fibers,drawing of copper wires,etc.

关 键 词：Radiation parameter MAGNETOHYDRODYNAMICS Micropolar fluid Variable thickness sheet Homotopy perturbation method(HPM) 

分 类 号：O35[理学—流体力学]