학술논문

Exploration of Thermal-Diffusion and Diffusion-Thermal Effects on the Motion of Temperature-Dependent Viscous Fluid Conveying Microorganism.
Document Type
Article
Source
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ). Sep2019, Vol. 44 Issue 9, p8023-8033. 11p.
Subject
*STAGNATION point
*BOUNDARY layer (Aerodynamics)
*PARTIAL differential equations
*MOTION
*DIFFUSION processes
*STAGNATION flow
Language
ISSN
2193-567X
Abstract
In the present work, dynamical aspects of boundary layer flow of hydromagnetic fluid (suspended with microorganisms) are investigated near the stagnation region over a stretchable heated permeable sheet. Viscosity is taken as a linear function of temperature where the flow field accommodates diffusion processes due to temperature and concentration gradients (Soret/Dufour numbers). A system of partial differential equations is set up for the mathematical description of the related bio-physical phenomenon. Unit free conversions and analysis of symmetry are implemented to obtain nonlinear dimensional free differential equations setup which can be solved numerically via the Runge–Kutta–Fehlberg scheme. Results in the form of pictorial and tabulation representation reveal that velocity profile increases when viscosity is a function of temperature difference, but the velocity profile influences the fluid temperature in the opposite direction. [ABSTRACT FROM AUTHOR]