Chemically reacting on MHD boundary layer flow of CuO-water and MgO-water nanofluids past a stretching sheet in porous media with radiation absorption and heat generation/absorption

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Kumaresan, E.^1 ; Vijaya Kumar, A.G.^1 ; Rushi Kumar, B.^1

Department of Mathematics, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu

632014, India^1

关键词: Boundary layer equations;    Chemical reaction parameters;    Convective boundary layers;    Diffusion-thermo effects;    Heat generation parameters;    Heat generation/absorption;    Nonlinear ordinary differential equation;    Nonlinear partial differential equations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062017/pdf
DOI  :  10.1088/1757-899X/263/6/062017

来源: IOP

【 摘 要 】

In the present investigation, a numerical analysis has been carried out for steady two dimensional MHD free convective boundary layer flows of electrically conducting nanofluids past a uniformly stretching sheet through porous media with radiation absorption, heat generation/absorption, thermal radiation, chemical reaction, thermo-diffusion and diffusion - thermo effects. We considered two types of nanofluids namely MgO-water and CuO-water. The mathematical model was governed by a system of linear and non-linear partial differential equations with prescribed boundary conditions. The governing boundary-layer equations are first transformed into a system of coupled nonlinear ordinary differential equations using similarity variables. The transformed equations were solved numerically by the shooting method with Runge-Kutta scheme. Finally the effects of various dimensionless governing parameters like magnetic field parameter, chemical reaction parameter, thermal radiation parameter, radiation absorption parameter, heat generation parameter, Dufour number, Soret number, volume fraction of the nanoparticles and shape of the nanoparticles on velocity, temperature and concentration profiles along with the friction factor, local Nusselt and Sherwood numbers are thoroughly studied and explicitly explained in tabular form.