Bioconvective nanofluid flow over an exponential stretched sheet with thermophoretic particle deposition

B.C. Prasannakumara ^a, J.K. Madhukesh ^a,c, G.K. Ramesh ^b,*

a. Department of Studies in Mathematics, Davangere University, Davangere, Karnataka 577002, India
         b. Department of Mathematics, K.L.E. Society’s J.T. College, Gadag, Karnataka 582101, India
         c. Department of Mathematics, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru, India

Abstract: The current work is being done to investigate the flow of nanofluids across a porous exponential stretching surface in the presence of a heat source/sink, thermophoretic particle deposition, and bioconvection. The collection of PDEs (partial differential equations) that represent the fluid moment is converted to a system of ODEs (ordinary differential equations) with the use of suitable similarity variables, and these equations are then numerically solved using Runge Kutta Fehlberg and the shooting approach. For different physical limitations, the numerical results are visually represented. The results show that increasing the porosity characteristics reduces velocity. The mass transfer decreases as the thermophoretic limitation increases. Increases in the porosity parameter reduce skin friction, increases in the solid volume fraction improve the rate of thermal distribution, and increases in the thermophoretic parameter increase the rate of mass transfer.

Keywords: Exponential stretching sheet; Nanofluid; Heat source/sink; Thermophoretic particle deposition; Bio convection

https://doi.org/10.1016/j.jppr.2023.05.004