Flow of a Second Grade Fluid through Constricted Tube using Integral Method

Autor:	A A. M. Siddiqui, N. Z. Khan, Muhammad Afzal Rana, Tahira Haroon
Jazyk:	angličtina
Rok vydání:	2016
Předmět:	Non-Newtonian fluids Constricted tube Analytical solutions Shear stress Back flow Separation and reattachment points. Mechanical engineering and machinery TJ1-1570
Zdroj:	Journal of Applied Fluid Mechanics, Vol 9, Iss 6, Pp 2803-2812 (2016)
Druh dokumentu:	article
ISSN:	1735-3572 61237884
Popis:	The steady flow of a second grade fluid through constricted tube for mild stenosis is modeled and analyzed theoretically. The governing equations are simplified by implying an order-of-magnitude analysis. Based on Karman Pohlhausen procedure polynomial solution for velocity profile is presented. Expressions for pressure gradient, shear stress, separation and reattachment points are also calculated. The effects of nondimensional parameters emerging in the model on the velocity profile, shear stress, pressure gradient are discussed and depicted graphically. The effect of non-Newtonian parameter on velocity profile, wall shear stress and pressure gradient is also analyzed. It is found that the Reynolds number strongly effect the wall shear stress, separation and reattachment points.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/3abaa61237884123b13cedfe8b2edbb8 Zobrazit plný text záznamu View record in DOAJ