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A finite-volume/level-set method for simulating two-phase flows on unstructured grids

Lookup NU author(s): Dr Néstor Balcázar ArciniegaORCiD

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Abstract

The conservative level-set method for capturing the interface between two fluids is combined with a variable density projection scheme to simulate incompressible two-phase flows on unstructured meshes. All equations are discretized by using a conservative finite-volume approximation on a collocated grid arrangement. A high order scheme based on a flux limiter formulation, is adopted for approximating the convective terms, while the diffusive fluxes are centrally differenced. Gradients are computed by the least-squares approach. Physical properties are assumed to vary smoothly in a narrow band around the interface to avoid numerical instabilities. The numerical method is validated against classical advection test and two-phase flow examples including topology changes.


Publication metadata

Author(s): Balcázar N, Jofre L, Lehmkuhl O, Castro J, Rigola J

Publication type: Article

Publication status: Published

Journal: International Journal of Multiphase Flow

Year: 2014

Volume: 64

Pages: 55-72

Print publication date: 01/09/2014

Online publication date: 09/05/2014

Acceptance date: 27/04/2014

ISSN (print): 0301-9322

ISSN (electronic): 1879-3533

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.ijmultiphaseflow.2014.04.008

DOI: 10.1016/j.ijmultiphaseflow.2014.04.008


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