DEVELOPMENT OF CMPS METHOD FOR ACCURATE WATER-SURFACE TRACKING IN BREAKING WAVES

• KHAYYER, ABBAS

• GOTOH, HITOSHI

Abstract

A Corrected Moving Particle Semi-implicit (CMPS) method is proposed for the accurate tracking of water surface in breaking waves. The original formulations of standard MPS method are revisited from the view point of momentum conservation. Modifications and corrections are made to ensure the momentum conservation in a particle-based calculation of viscous incompressible free-surface flows. A simple numerical test demonstrates the excellent performance of the CMPS method in exact conservation of linear momentum and significantly enhanced preservation of angular momentum. The CMPS method is applied to the simulation of plunging breaking and post-breaking of solitary waves. Qualitative and quantitative comparisons with the experimental data confirm the high capability and precision of the CMPS method. A tensor-type strain-based viscosity is also proposed to further enhanced CMPS reproduction of a splash-up.

Journal

• Coastal Engineering Journal

  Coastal Engineering Journal 50 (2), 179-207, 2008

  World Scientific Publishing Company

Keywords

• MPS method
• CMPS method
• momentum conservation
• breaking waves
• splash-up
• strain-based viscosity

Details

• CRID: 1050001202299220352
• NII Article ID: 10021136930
• NII Book ID: AA1152886X
• ISSN: 05785634
• HANDLE: 2433/93447
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles