Topical Problems of Fluid Mechanics


Institute of Thermomechanics AS CR, v.v.i.	CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics	MIO Université du Sud Toulon Var - AMU - CNRS - IRD	Czech Pilot centre ERCOFTAC

Effect of the Half End-Wall on Velocity and Taylor Vortices Flow
A. Merah, F. Mokhtari, R. Kelaiaia, A. Lalaoua, H. Baghli, A. Hamrani, Z. Chaieb
Abstract:
This purpose is about a computational fluid dynamics investigation of a step varying in annular space effect on Taylor vortices flow and velocity in cylindrical Taylor-Couette system. Three cases are considered, the first geometric configuration GCi where the change in radius of the outer cylinder, and the half endplate is replaced by fluid close to the inner cylinder. The second geometrical configuration GCo with a step change in radius of inner cylinder and the half end-plate is replaced by a fluid close to outer cylinder. The last case CGb, the system has a change in both cylinders. The bottom endplate is attached to the outer cylinder, which are held fixed, the inner one is rotating, and a cylinder radius ratio of η = 0.66. Hence, the Taylor vortices flow development in geometrical configuration GCo for different Reynolds number values and Axial profile of dimensionless tangential velocity component midway across the gap for Ta = 59.42, a numerical method based on the finite volume method is employed in simulations.
Keywords:
rotating flow, annular space, Taylor vortices

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2018.027

In Proceedings Topical Problems of Fluid Mechanics 2018, Prague, 2018 Edited by David Šimurda and Tomáš Bodnár, pp. 203-208 ISBN 978-80-87012-65-9 (Print) ISSN 2336-5781 (Print)