Peristaltic motion of magnetohydrodynamic viscous fluid in a curved circular tube

Autor: Shagufta Yasmeen, Nnamdi Fidelis Okechi, Hafiz Junaid Anjum, Saleem Asghar
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Results in Physics, Vol 7, Iss , Pp 3307-3314 (2017)
Druh dokumentu: article
ISSN: 2211-3797
DOI: 10.1016/j.rinp.2017.08.044
Popis: In this paper we investigate the peristaltic flow of viscous fluid through three-dimensional curved tube in the presence of the applied magnetic field. We present a mathematical model and an asymptotic solution for the three dimensional Navier-Stokes equations under the assumption of small inertial forces and long wavelength approximation. The effects of the curvature of the tube are investigated with particular interest. The solution is sought in terms of regular perturbation expansion for small curvature parameter. It is noted that the velocity field is more sensitive to the curvature of tube in comparison to the pressure gradient. It is shown that peristaltic magnetohydrodynamic (MHD) flow in a straight tube is the limiting case of this study. Keywords: Curved circular tube, Toroidal coordinate system, Peristalsis, Asymptotic solution, MHD, Newtonian fluid
Databáze: Directory of Open Access Journals