An improved solid boundary treatment for wave–float interactions using ISPH method

Xing Zheng; Xipeng Lv; Qingwei Ma; Wenyang Duan; Abbas Khayyer; Songdong Shao

International Journal of Naval Architecture and Ocean Engineering (May 2018)

An improved solid boundary treatment for wave–float interactions using ISPH method

Xing Zheng,
Xipeng Lv,
Qingwei Ma,
Wenyang Duan,
Abbas Khayyer,
Songdong Shao

Affiliations

Xing Zheng: College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China; Corresponding author.
Xipeng Lv: College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Qingwei Ma: School of Mathematics, Computer Science and Engineering, City, University of London, London EC1V 0HB, UK
Wenyang Duan: College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Abbas Khayyer: Department of Civil and Earth Resources Engineering, Kyoto University, Kyoto 615-8540, Japan
Songdong Shao: Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK; State Key Laboratory of Hydro-Science and Engineering, Tsinghua University, Beijing 100084, China

Journal volume & issue: Vol. 10, no. 3
pp. 329 – 347

Abstract

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The Smoothed Particle Hydrodynamics (SPH) method has proved to have great potentials in dealing with the wave-structure interactions. Compared with the Weakly Compressible SPH (WCSPH) method, the ISPH approach solves the pressure by using the pressure Poisson equation rather than the equation of state. This could provide a more stable and accurate pressure field that is important in the study of wave-structure interactions. This paper improves the solid boundary treatment of ISPH by using a high accuracy Simplified Finite Difference Interpolation (SFDI) scheme for the 2D wave-structure coupling problems, especially for free-moving structure. The proposed method is referred as the ISPH_BS. The model improvement is demonstrated by the documented benchmark tests and laboratory experiment covering various wave-structure interaction applications. Keywords: ISPH, Moving boundary, SFDI, Wave–float interactions, ISPH_BS

Published in International Journal of Naval Architecture and Ocean Engineering

ISSN: 2092-6782 (Print)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Ocean engineering; Naval Science: Naval architecture. Shipbuilding. Marine engineering
Website: https://www.journals.elsevier.com/international-journal-of-naval-architecture-and-ocean-engineering/

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