Incompressible smoothed particle hydrodynamics-moving IRBFN method for viscous flow problems

Ngo-Cong, D. and Tran, C.-D. and Mai-Duy, N. and Tran-Cong, T. (2015) Incompressible smoothed particle hydrodynamics-moving IRBFN method for viscous flow problems. Engineering Analysis with Boundary Elements, 59. pp. 172-186. ISSN 0955-7997

Abstract

We propose a novel numerical approach based on incompressible smoothed particle hydrodynamics and moving integrated radial basis function networks method, namely ISPH-MIRBFN, for solving incompressible viscous flow problems. In the ISPH method, the pressure is acquired from solving Poisson equation. In the present approach, the pressure Poisson equation is solved on a set of MIRBFN nodal points and the obtained results are then transferred to the SPH particles. The performance of the present method is investigated through several numerical examples including spin-down vortex, flows in a lid-driven closed-cavity and a lid-driven open-cavity with a prescribed bottom wall motion. Numerical results show that the proposed method reduces the spurious pressure fluctuations, yields a smoother pressure-field solution and maintains the computational efficiency when compared to the ISPH.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 10 Nov 2015 05:15
Last Modified: 27 Jul 2016 05:43
Uncontrolled Keywords: smoothed particle hydrodynamics; incompressible; integrated radial; basis function; moving least square; viscous flow; moving boundary
Fields of Research : 09 Engineering > 0915 Interdisciplinary Engineering > 091501 Computational Fluid Dynamics
09 Engineering > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics
Identification Number or DOI: 10.1016/j.enganabound.2015.06.006
URI: http://eprints.usq.edu.au/id/eprint/28032

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