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Numerical analysis of breaking waves using the moving particle semi-implicit method

1998; Wiley; Volume: 26; Issue: 7 Linguagem: Inglês

10.1002/(sici)1097-0363(19980415)26

1097-0363

Seiichi Koshizuka, Atsushi Nobe, Y. Oka,

Fluid Dynamics and Heat Transfer

International Journal for Numerical Methods in FluidsVolume 26, Issue 7 p. 751-769 Research Article Numerical analysis of breaking waves using the moving particle semi-implicit method Seiichi Koshizuka, Corresponding Author Seiichi Koshizuka [email protected] jp Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanNuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan===Search for more papers by this authorAtsushi Nobe, Atsushi Nobe Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanSearch for more papers by this authorYoshiaki Oka, Yoshiaki Oka Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanSearch for more papers by this author Seiichi Koshizuka, Corresponding Author Seiichi Koshizuka [email protected] jp Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanNuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan===Search for more papers by this authorAtsushi Nobe, Atsushi Nobe Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanSearch for more papers by this authorYoshiaki Oka, Yoshiaki Oka Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, JapanSearch for more papers by this author First published: 04 December 1998 https://doi.org/10.1002/(SICI)1097-0363(19980415)26:7 3.0.CO;2-CCitations: 538AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The numerical method used in this study is the moving particle semi-implicit (MPS) method, which is based on particles and their interactions. The particle number density is implicitly required to be constant to satisfy incompressibility. A semi-implicit algorithm is used for two-dimensional incompressible non-viscous flow analysis. The particles whose particle number densities are below a set point are considered as on the free surface. Grids are not necessary in any calculation steps. It is estimated that most of computation time is used in generation of the list of neighboring particles in a large problem. An algorithm to enhance the computation speed is proposed. The MPS method is applied to numerical simulation of breaking waves on slopes. Two types of breaking waves, plunging and spilling breakers, are observed in the calculation results. The breaker types are classified by using the minimum angular momentum at the wave front. The surf similarity parameter which separates the types agrees well with references. Breaking waves are also calculated with a passively moving float which is modelled by particles. Artificial friction due to the disturbed motion of particles causes errors in the flow velocity distribution which is shown in comparison with the theoretical solution of a cnoidal wave. © 1998 John Wiley & Sons, Ltd. Citing Literature Volume26, Issue715 April 1998Pages 751-769 RelatedInformation