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A numerical method for two-phase flows of dense granular mixtures.
- Source :
-
Journal of Computational Physics . Jan2014, Vol. 257, p737-756. 20p. - Publication Year :
- 2014
-
Abstract
- Abstract: In this paper, a novel algorithm for incompressible flows of two-phase granular mixtures is proposed. The algorithm constitutes a generalization of projection-type methods to multi-phase flows and employs a predictor–corrector time-marching scheme. For the computation of the phasial pressures, a Poisson equation and a second-order elliptic PDE with variable coefficients are solved at both the prediction and the correction stage. Further, the algorithm is combined with a regularization scheme for the numerical treatment of material interfaces which are a common characteristic of the flows of interest. The efficiency and robustness of the proposed algorithm are illustrated via numerical simulations of unsteady two-dimensional shear flows for a reference mixture of beach sand and water. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219991
- Volume :
- 257
- Database :
- Academic Search Index
- Journal :
- Journal of Computational Physics
- Publication Type :
- Academic Journal
- Accession number :
- 92037118
- Full Text :
- https://doi.org/10.1016/j.jcp.2013.10.023