A moving mesh finite volume interface tracking method for surface tension dominated interfacial fluid flow

Tuković, Željko and Jasak, Hrvoje (2012) A moving mesh finite volume interface tracking method for surface tension dominated interfacial fluid flow. = A moving mesh finite volume interface tracking method for surface tension dominated interfacial fluid flow. Computers & fluids, 55. pp. 70-84. ISSN 0045-7930. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2012). Točan broj autora: 2.

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Abstract

This paper describes a moving mesh interface tracking method implemented in OpenFOAM for simulating three-dimensional (3-D) incompressible and immiscible two-phase interfacial fluid flows with dominant surface tension forces. Collocated finite volume (FV) method is used for spatial discretisation of Navier-Stokes equations on moving polyhedral mesh. The mesh consists of two parts separated on interface. Fluid flow is solved on each mesh separately and coupling is accomplished in an iterative manner by enforcing the kinematic and dynamic condition at the interface. Surface tension force is calculated on arbitrary polygonal surface mesh with second order accuracy using a "force-conservative" approach. Arbitrary polyhedral mesh adapts to the time-varying shape of the interface using vertex-based automatic mesh motion solver which calculates the motion of internal points based on the prescribed motion of interface points by solving the variable diffusivity Laplace equation discretised using the finite element method. The overall solution procedure based on iterative PISO algorithm with modified Rhie-Chow interpolation is second-order accurate in space and time, as is confirmed by numerical experiments on small amplitude sloshing in a two-dimensional (2-D) tank, 3-D droplet oscillation and buoyant rise of a 3-D air bubble in water. Numerical results are found to be in excellent agreement with available theoretical and experimental results. © 2011 Elsevier Ltd.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	Interface tracking; Moving polyhedral mesh; Multiphase fluid flow; OpenFOAM; PISO algorithm; Rhie-Chow interpolation; Algorithms; Finite element method; Finite volume method; Fluids; Interpolation; Laplace equation; Navier Stokes equations; Oscillating flow; Surface tension; Three dimensional; Two phase flow; Flow of fluids
Subjects:	TECHNICAL SCIENCE
Divisions:	500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q2 (2012)
Date Deposited:	27 Apr 2015 10:26
Last Modified:	30 Mar 2017 15:09
URI:	http://repozitorij.fsb.hr/id/eprint/3971

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