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Numerical Wave Flume with Improved Smoothed Particle Hydrodynamics

http://hdl.handle.net/20.500.12678/0000007168
464ddc5c-be8b-4cda-92f4-e9c7e0c584d5
eaaf267d-b111-4fc7-9105-8c04f5d61d9c
Publication type
Journal article
Upload type
Publication
Title
Title Numerical Wave Flume with Improved Smoothed Particle Hydrodynamics
Language en
Publication date 2010-12-01
Authors
Mee Mee Soe
Description
This article presents an improved Nearest Neighboring Particle Searching (NNPS) technique for numerical modeling of water waves with the Smoothed Particle Hydrodynamics (SPH) method. The proposed technique differs from others by introducing the concept of Inner and Outer Particle Searching (IOPS) and shifting most of advanced CPU operations into simple addition operations. The IOPS method is shown to significantly improve the computational efficiency and reduce the CPU time especially for large number of particles, based on comparisons with other two NNPS methods. This method is implemented in a 2DV numerical wave flume conducted by the SPH method. Three test cases are examined, including generations and propagations of dam-breaking induced waves, solitary wave and irregular wave. Calculated results are in good agreements with experimental data and theoretical solutions with fairly satisfactory CPU time-consuming. The wave motions observed in physical facilities are successfully reproduced by the SPH numerical wave flume, revealing its robust capability of modeling realistic wave propagation and substantial potential for a wide variety of hydrodynamic problems.
Keywords
Smoothed Particle Hydrodynamics (SPH) method, particle searching technique, numerical wave flume, Navier-Stokes equation
Identifier https://doi.org/10.1016/S1001-6058(09)60115-3
Journal articles
ELSEVIER
Journal of Hydrodynamics
Pages 773-781
Volume 22, Issue 6
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