Cross diffusion effects on combined bioconvection of nanofluid in a flat channel along with microorganisms

3rd International Conference on Materials and Manufacturing Engineering 2018

Geetha, S.P.^1 ; Sivasankaran, S.^2 ; Bhuvaneswari, M.^2 ; Rajan, S.^3

Department of Mathematics, Vellalar College for Women, Erode, Tamilnadu

638 012, India^1

Department of Mathematics, King Abdulaziz University, Jeddah

21589, Saudi Arabia^2

Department of Mathematics, Erode Arts and Science College, Erode, Tamilnadu

638 009, India^3

关键词: Bioconvection;    Channel;    Dufour effect;    Nanofluids;    Soret effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/390/1/012084/pdf
DOI  :  10.1088/1757-899X/390/1/012084

来源: IOP

【 摘 要 】

This paper investigates the cross diffusion effects on fully developed mixed bioconvection of gyrotactic microorganisms through horizontal channel filled with nanoliquid under the influence of Soret and Dufour effects. The governing nonlinear partial differential equations are converted into set of nonlinear ordinary differential equations using appropriate similarity variables. The equations together with the boundary conditions are solved by using homotopy analysis method (HAM). The effects of thermophoresis, Brownian motion, Soret and Dufour parameters on mass and heat transfer are analysed graphically. It was found that Soret and Dufour effects was highly influenced in the temperature and the movement of microorganisms.