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Block-based adaptive mesh refinement scheme using numerical density of entropy production for three-dimensional two-fluid flows.
- Source :
-
International Journal of Computational Fluid Dynamics . Jan2015, Vol. 29 Issue 1, p67-81. 15p. - Publication Year :
- 2015
-
Abstract
- In this work, we present a fast and parallel finite volume scheme on unstructured meshes applied to complex fluid flow. The mathematical model is based on a three-dimensional compressible low Mach two-phase flows model, combined with a linearised ‘artificial pressure’ law. This hyperbolic system of conservation laws allows an explicit scheme, improved by a block-based adaptive mesh refinement scheme. Following a previous one-dimensional work, the useful numerical density of entropy production is used as mesh refinement criterion. Moreover, the computational time is preserved using a local time-stepping method. Finally, we show through several test cases the efficiency of the present scheme on two- and three-dimensional dam-break problems over an obstacle. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10618562
- Volume :
- 29
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- International Journal of Computational Fluid Dynamics
- Publication Type :
- Academic Journal
- Accession number :
- 101557211
- Full Text :
- https://doi.org/10.1080/10618562.2015.1012161