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Finite Volume-Lattice Boltzmann Modeling of Time-Dependent Flows

Finite Volume-Lattice Boltzmann Modeling of Time-Dependent Flows, A. Zarghami and P. Omidvar. Scientia Iranica 2013, 20  (6), 1812–1823.

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Abstract

In this paper, a stable finite volume formulation of the lattice Boltzmann method is used to study time-dependent flows. For simulation purposes, a cell-centered scheme is implemented to discretize the convection operator and weighting factors are used as flux correctors to enhance the stability. Also, additional lattices at the edge of each boundary cell are used, which allow a much better description of the actual geometrical shape. Compared with previous finite volume formulations, the proposed approach resulted in a wider domain of stability and faster convergence. The scheme is validated through simulations on flow over a circular cylinder and mixing layer flow. The results show that the method is a promising scheme for simulating time-dependent flows. (C) 2013 Sharif University of Technology. All rights reserved.

BibTeX

@article{ ISI:000330813300011,
Author = {Zarghami, A. and Omidvar, P.},
Title = {Finite Volume-Lattice Boltzmann Modeling of Time-Dependent Flows},
Journal = {Scientia Iranica},
Year = {2013},
Volume = {20},
Number = {6},
Pages = {1812-1823},
Month = {},
Abstract = {In this paper, a stable finite volume formulation of the lattice Boltzmann method is used to study time-dependent flows. For simulation purposes, a cell-centered scheme is implemented to discretize the convection operator and weighting factors are used as flux correctors to enhance the stability. Also, additional lattices at the edge of each boundary cell are used, which allow a much better description of the actual geometrical shape. Compared with previous finite volume formulations, the proposed approach resulted in a wider domain of stability and faster convergence. The scheme is validated through simulations on flow over a circular cylinder and mixing layer flow. The results show that the method is a promising scheme for simulating time-dependent flows. (C) 2013 Sharif University of Technology. All rights reserved.},
ISSN = {1026-3098},
Unique-ID = {ISI:000330813300011},
}

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