Journal ArticleDOI
Numerical analysis of breaking waves using the moving particle semi-implicit method
TLDR
In this paper, a moving particle semi-implicit (MPS) algorithm is used for two-dimensional incompressible non-viscous flow analysis and two types of breaking waves, plunging and spilling breakers, are observed in the calculation results.Abstract:
SUMMARY 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.read more
Citations
More filters
Journal ArticleDOI
Flow behaviour over a 2D body using the moving particle semi-implicit method with free surface stabilisation
Carlos A. Perez,Manuel García +1 more
TL;DR: In this paper, a modified Moving Particle Semi-implicit (MPS) method was proposed for modeling immerse bodies in an free surface flow, which is suitable for free surface problems.
Proceedings ArticleDOI
Waves simulation in viscous waters using MPS
TL;DR: In this article, a vertical two-dimensional lagrangian model named Moving Particle Semi-implicit (MPS) is developed to simulate hydrodynamic behavior of water waves in open channels.
Simulation of a Ship with Partially Filled Tanks Rolling in Waves by Applying Moving Particle Semi-Implicit Method
TL;DR: In this paper, a moving particle semi-implicit method (MPS) was used to analyze the free surface behavior of a ship with partially filled tanks rolling in regular waves.
Journal ArticleDOI
MPS modeling of cross-sectional averaged shallow water flows with open boundaries using TVD-MacCormack predictor-corrector
TL;DR: In this article , a moving particle simulation (MPS) solver was proposed to solve cross-sectional averaged shallow water equations applicable for non-prismatic open channels, and the well-known TVD-MacCormack scheme was extended to the Lagrangian framework, ensuring the second accuracy in time and space.
Journal ArticleDOI
Smoothed particle hydrodynamics analysis on semi-solid metal forming process
TL;DR: In this paper, a smoothed particle hydrodynamics (SPH) method for the flow analyses of mixture of fluid and solid phase is presented and is applied to the semi-solid forming problems of functionally graded materials (FGMs).
References
More filters
Journal ArticleDOI
Moving-Particle Semi-Implicit Method for Fragmentation of Incompressible Fluid
Seiichi Koshizuka,Yoshiaki Oka +1 more
TL;DR: In this paper, a moving-particle semi-implicit (MPS) method for simulating fragmentation of incompressible fluids is presented, where the motion of each particle is calculated through interactions with neighboring particles covered with the kernel function.
Journal ArticleDOI
Breaker type classification on three laboratory beaches
TL;DR: Breaker type, for waves on smooth concrete slopes, depends on beach slope m, wave period T, and either deep-water or breaker height, H 0 or Hb as discussed by the authors.
Related Papers (5)
Moving-Particle Semi-Implicit Method for Fragmentation of Incompressible Fluid
Seiichi Koshizuka,Yoshiaki Oka +1 more
Smoothed particle hydrodynamics: Theory and application to non-spherical stars
R. A. Gingold,Joseph J Monaghan +1 more