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

Vortices Inside a Ventilated Cavity
Dimitrieva N. F.
Abstract:
This study is devoted to the study of complex vortex flows inside the cavity and the influence of injection parameters on the restructuring of the vortex structure. The calculations are performed using the OpenFoam software. The interFoam model is used for two incompressible isothermal media without phase transition. The mesh is constructed by the stepwise cell refinement method using the snappyHexMesh utility. A complex vortex structure inside a ventilated cavity is described. Three zones are distinguished: constant pressure, viscous diffusion and two-phase mixing layer. The dimensions of the cavity parts depend on the velocity of the main fluid flow and the flow rate of the injected gas. Good agreement with theoretical and experimental data was obtained.
Keywords:
two-phase flow, cavity, vortex, computational fluid dynamics, volume of fluid

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2025.007

In Proceedings Topical Problems of Fluid Mechanics 2025, Prague, 2025, Edited by David Šimurda and Tomáš Bodnár, pp. 45 ISBN 978-80-87012-05-5 (Print) ISSN 2336-5781 (Print)