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

Numerical Study of Generation of Steady Streamwise Streaks in Duct Flow
Z. Tigrine, A. Bouabdallah, F. Mokhtari
Abstract:
In this work, the influence of transverse magnetic field on a laminar liquid metal flow in an insulating rectangular duct is numerically solved with three-dimensional (3D) simulations. We use vortex generators as passive mechanism to control the flow. They are small cylinders fixed close to the flow inlet perpendicular to the lower plate that generate vortices at their tip. Simulations are performed by means of the numerical method based on the finite volume. The considered liquid metal is 17Li83Pb eutectic alloy evolving in the rectangular Poiseuille flow. The effect of forced convection and magnetic field is analysed. The velocity variation and shear rate contours at different streamwise positions across the wall-normal direction are presented.
Keywords:
magnetohydrodynamics, liquid metal, vortex generators, numerical simulations, velocity

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2018.039

In Proceedings Topical Problems of Fluid Mechanics 2018, Prague, 2018 Edited by David Šimurda and Tomáš Bodnár, pp. 291-298 ISBN 978-80-87012-65-9 (Print) ISSN 2336-5781 (Print)