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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 554Application of the Lattice Boltzmann Method for...

Application of the Lattice Boltzmann Method for Fluid Flow around Complex Geometry

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Abstract:

In recent years, several strategies have been proposed to deal with complex geometry to study particle-fluid interaction using lattice Boltzmann method. Curved boundary treatments have been suggested to improve the accuracy of the stair-shaped approximation in conventional lattice Boltzmann simulations. This paper presents numerical analysis of three interpolation methods for confined flow around blockage positioned inside a channel. A two-dimensional nine velocity lattice arrangement was chosen to discretize the fluid domain and single relaxation time technique is applied in this study. The results are presented in terms of velocity contour, lift and drag forces variation for three different shapes of blockage. The simulations results are then compared with those obtained using the three different interpolating treatments. Some of these methods show more adaptability for force evaluating on distinct surfaces.

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Mechanical and Materials Engineering

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Periodical:

Applied Mechanics and Materials (Volume 554)

Pages:

230-235

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.554.230

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Online since:

June 2014

Authors:

Leila Jahanshaloo, Nor Azwadi Che Sidik*, Emad Kermani

Keywords:

Curved Boundary, Drag Force, Fluid Flow, Lattice Boltzmann, Reynolds Number

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* - Corresponding Author

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