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

Problematic of Incompressible Bifluid Navier-Stokes Equations Approached on Non Body Fitted Meshes
Galusinski C.
Abstract:
In order to solve Navier-Stokes equations on a moving domain or with simple schemes, non body fitted meshes are chosen. The goal of this work is to introduce difficulties encountered with such a choice and to show a way to overcome them. The first part is devoted to the presentation of a modified boundary condition to take into account the fact that physical walls are approached by the mesh. A second part deals with the algorithm to solve bifluid Navier-Stokes equations. Then, bifluid flows with surface tension are considered and some applications follow. As we are concerned with computational cost, we show how fast, a mesh generation and a Poisson multigrid solver (AGMG) are. Keywords: Navier-Stokes equations, bifluid flows.
Keywords:
Navier-Stokes equations, bifluid fows

Fulltext: PDF DOI: http://dx.doi.org/10.14311/TPFM.2016.008

In Proceedings Topical Problems of Fluid Mechanics 2016, Prague, 2016 Edited by David Šimurda and Tomáš Bodnár, pp. 51-58 ISBN 978-80-87012-58-1 (Print) ISSN 2336-5781 (Print)