Bibliographic Details
| Title: |
Irregular wave simulation using an energy-conserved MPS method with an accurate projection algorithm. |
| Authors: |
Ikari, Hiroyuki1 (AUTHOR) ikari@particle.kuciv.kyoto-u.ac.jp, Gotoh, Hitoshi1 (AUTHOR) |
| Source: |
Coastal Engineering Journal. Dec2025, Vol. 67 Issue 4, p792-811. 20p. |
| Subjects: |
Energy conservation, Particle methods (Numerical analysis), Computer simulation, Benchmark testing (Engineering), Nonlinear waves |
| Abstract: |
This paper presents an irregular wave simulation using the Moving Particle Semi-implicit (MPS) method. Irregular waves consist of component waves with a variety of frequencies and wave heights; however, a numerical model with sufficiently high energy conservation must be applied to reproduce them effectively in a numerical simulation. In general, conventional particle methods do not have sufficient energy conservation, and they cannot successfully realize irregular waves propagating a sufficiently long distance. Therefore, in this study, we propose an MPS-based numerical model with high energy conservation. We clarify that the standard algorithm of the original MPS method is not strictly based on the projection method and propose a modified algorithm to resolve this problem completely, namely Accurate Projection Algorithm (APA). The proposed model implementing APA and several enhanced MPS-based discretization schemes, including the Improved Dynamic Stabilization (IDS) scheme has high energy conservation. The model was verified and validated through three types of benchmark tests: a plane 2D oscillating drop test, a vertical 2D standing wave test, and a solitary wave test. Subsequently, we conducted an irregular wave simulation in a wave flume with a flat bottom. It was demonstrated that the proposed model can simulate irregular waves without wave height attenuation. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
