Title
Simulations of non homogeneous viscous flows with incompressibility constraints.
Abstract
This presentation is an overview on the development of numerical methods for the simulation of non homogeneous flows with incompressibility constraints. We are particularly interested in systems of partial differential equations describing certain mixture flows, like the Kazhikhov–Smagulov system which can be used to model powder-snow avalanches. It turns out that the Incompressible Navier–Stokes system with variable density is a relevant step towards the treatment of such models, and it allows us to bring out some interesting numerical difficulties. We should handle equations of different types, roughly speaking transport and diffusion equations. We present two strategies based on time-splitting. The former relies on a hybrid approach, coupling finite volume and finite element methods. The latter extends discrete duality finite volume schemes for such non homogeneous flows. The methods are confronted to exact solutions and to the simulation of Rayleigh–Taylor instabilities.
Year
DOI
Venue
2017
10.1016/j.matcom.2016.11.006
Mathematics and Computers in Simulation
Keywords
Field
DocType
Non homogeneous viscous flows,Navier–Stokes equations,Mixtures,Multifluid flows,Finite volume methods
Compressibility,Mathematical optimization,Coupling,Mathematical analysis,Finite element method,Duality (optimization),Numerical analysis,Finite volume method,Pressure-correction method,Mathematics,Navier–Stokes equations
Journal
Volume
ISSN
Citations 
137
0378-4754
0
PageRank 
References 
Authors
0.34
12
4
Name
Order
Citations
PageRank
Caterina Calgaro1181.88
E. Creusé2184.59
Thierry Goudon35212.65
Stella Krell4233.62