Numerical simulation of the solitary wave interacting with an elastic structure using MPS-FEM coupled method

Rao, Chengping; Zhang, Youlin; Wan, Decheng

doi:10.1007/s11804-017-1430-x

Cited by 13 publications

(3 citation statements)

References 34 publications

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“…A fully Lagrangian solver MPS-FEM-STJU is developed for fluid-structure interaction problems based on the abovementioned method. The solver has been proven to be valid in 2D FSI problems, such as liquid sloshing with an elastic baffle and dam-break through an elastic gate (Zhang et al 2016a;Zhang and Wan 2017), as well as 3D FSI problems, including solitary wave-plate interaction (Rao et al 2017a;Rao et al 2017b) and sloshing in an elastic tank (Zhang and Wan 2018). Theories of the MPS and FEM method together with the coupling strategy are first presented.…”

Section: Article Highlightsmentioning

confidence: 99%

MPS-FEM Coupled Method for Study of Wave-Structure Interaction

Zhang

Chen

Wan

2019

J. Marine. Sci. Appl.

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Nowadays, an increasing number of ships and marine structures are manufactured and inevitably operated in rough sea. As a result, some phenomena related to the violent fluid-elastic structure interactions (e.g., hydrodynamic slamming on marine vessels, tsunami impact on onshore structures, and sloshing in liquid containers) have aroused huge challenges to ocean engineering fields. In this paper, the moving particle semi-implicit (MPS) method and finite element method (FEM) coupled method is proposed for use in numerical investigations of the interaction between a regular wave and a horizontal suspended structure. The fluid domain calculated by the MPS method is dispersed into fluid particles, and the structure domain solved by the FEM method is dispersed into beam elements. The generation of the 2D regular wave is firstly conducted, and convergence verification is performed to determine appropriate particle spacing for the simulation. Next, the regular wave interacting with a rigid structure is initially performed and verified through the comparison with the laboratory experiments. By verification, the MPS-FEM coupled method can be applied to fluid-structure interaction (FSI) problems with waves. On this basis, taking the flexibility of structure into consideration, the elastic dynamic response of the structure subjected to the wave slamming is investigated, including the evolutions of the free surface, the variation of the wave impact pressures, the velocity distribution, and the structural deformation response. By comparison with the rigid case, the effects of the structural flexibility on wave-elastic structure interaction can be obtained.

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Section: Article Highlightsmentioning

confidence: 99%

MPS-FEM Coupled Method for Study of Wave-Structure Interaction

Zhang

Chen

Wan

2019

J. Marine. Sci. Appl.

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“…Rao et al 55 proposed a weakly coupled MPS‐FEM to investigate the interaction between solitary waves and elastic structures in 2D. Afterwards, Zhang and Wan 56 improved the 2D coupled model by including a particle group scheme, 11 in which solid particles located within a transverse section are grouped.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional weakly compressible moving particle simulation coupled with geometrically nonlinear shell for hydro‐elastic free‐surface flows

Junior

Neto

Cheng

2022

Numerical Methods in Fluids

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A three-dimensional fluid-structure interaction solver based on an improved weakly compressible moving particle simulation (WC-MPS) method and a geometrically nonlinear shell structural model is developed and applied to hydro-elastic free-surface flows. The fluid-structure coupling is performed by a polygon wall boundary model that can handle particles and finite elements of distinct sizes. In WC-MPS, a tuning-free diffusive term is introduced to the continuity equation to mitigate nonphysical pressure oscillations. Discrete divergence operators are derived and applied to the polygon wall boundary, of which the numerical stability is enhanced by a repulsive Lennard-Jones force.Additionally, an efficient technique to deal with the interaction between fluid particles placed at opposite sides of zero-thickness walls is proposed. The geometrically nonlinear shell is modeled by an unstructured mesh of six-node triangular elements. Finite rotations are considered with Rodrigues parameters and a hyperelastic constitutive model is adopted. Benchmark examples involving free-surface flows and thin-walled structures demonstrate that the proposed model is robust, numerically stable and offers more efficient computation by allowing mesh size larger than that of fluid particles.

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“…In both works of Mitsume, the models were verified against numerical results from collapse of water column on an elastic plate. A weak coupling of MPS-FEM was proposed by Rao et al (2017), aimed to investigate a 2D interaction between a solitary wave and an elastic structure.…”

Section: Related Workmentioning

confidence: 99%

Influência da temperatura no comportamento do concreto com diferentes teores de fibras de aço.

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Numerical simulation of the solitary wave interacting with an elastic structure using MPS-FEM coupled method

Cited by 13 publications

References 34 publications

MPS-FEM Coupled Method for Study of Wave-Structure Interaction

MPS-FEM Coupled Method for Study of Wave-Structure Interaction

Three‐dimensional weakly compressible moving particle simulation coupled with geometrically nonlinear shell for hydro‐elastic free‐surface flows

Influência da temperatura no comportamento do concreto com diferentes teores de fibras de aço.

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