Free surface flow impacting on an elastic structure: Experiment versus numerical simulation

Liao, Kangping; Hu, Changhong; Sueyoshi, Masahiro

doi:10.1016/j.apor.2015.02.002

Cited by 79 publications

(45 citation statements)

References 16 publications

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“…An improved experiment from previous works on CFD validation 9,27) is performed in the Research Institute for Applied Mechanics (RIAM), Kyushu University. In the present study, a new experimental setup with a new gate design have been developed.…”

Section: Methodsmentioning

confidence: 99%

“…In the present study, a new experimental setup with a new gate design have been developed. The design of the bottom gate area is much smaller than that in the previous experiment 9,27) in order to reduce the effect of suction force on the dry horizontal bed. In addition, two I-Beam structures are attached on the gate structure in order to increase the structure strength.…”

Section: Methodsmentioning

confidence: 99%

“…The downstream wave propagation measurement is conducted systematically by using the video motion capturing technique, which is also used by Lobovsky et al 28) . The measurement technique used in the present study utilizes higher resolutions and larger frame-rate imaging as compared with the measurements used in previous studies (Hu & Sueyoshi 9) ; Kangpi et al 27) ; Lobovsky et al 28) ) In this study, two measurements of wave fronts are obtained in order to check the repeatability. These measurement results are quantitatively compared and found to agree well with other experiments as shown in Figure 8.…”

Section: Validation On the Wave Front Propagationmentioning

confidence: 99%

See 2 more Smart Citations

Lattice Boltzmann Method for Free Surface Impacting on Vertical Cylinder : A Comparison with Experimental Data

Mohd¹,

Kamra²,

Sueyoshi³

et al. 2017

Evergreen

Self Cite

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The purpose of the present research is to study three-dimensional lattice Boltzmann method (LBM) simulation on free surface impact phenomena with the validation on a newly performed dam breaking experiment. Large eddy simulation (LES) is implemented in the LBM to enhance the computational efficiency and to relax the restriction of the computational stability. The LBM method involves a surface-tracking technique with free surface algorithm. In this study, the present numerical simulation is validated by comparing wave front propagation and water level elevation with the experimental measurements. A three dimensional numerical simulation on dam breaking with vertical cylinder obstacles are performed and qualitative comparison with the experimental measurement has been made. Good qualitative agreement between numerical simulations and the experiments has been obtained in terms of free surface development, splash pattern and splash distance. For the square cross section cylinder, the water impacts on the cylinder violently and the flow is directed to the sides of the tank. For the circular cross section cylinder, the water flows smoothly around the cylinder and impacts tank wall violently. The results show that the free surface lattice Boltzmann method is efficient for dealing with complex geometrical problems.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Validation On the Wave Front Propagationmentioning

confidence: 99%

See 1 more Smart Citation

Lattice Boltzmann Method for Free Surface Impacting on Vertical Cylinder : A Comparison with Experimental Data

Mohd¹,

Kamra²,

Sueyoshi³

et al. 2017

Evergreen

Self Cite

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show abstract

“…The enhanced solver is verified by a set of FSI problems including high velocity impact of a deformable beam on undisturbed water 7) as well as a dam break with an elastic plate 8,9) .…”

Section: Verification and Comparisonmentioning

confidence: 99%

“…The DS scheme provides meticulously adequate repulsive interparticle forces to guarantee the stability. This scheme can be concisely formulated as follows: (9) where F ij DS is the stabilizing force for target particle i from its neighboring particle j; Π ij is a parameter to adjust the magnitude of F ij DS ; α DS is a constant for adjusting active range of F ij DS ; α dt is the ratio of the time step to Courant number (= 0.2, in this study) used in determination of calculation time step; d represents the particle diameter, r ij,// * is the parallel vector of r ij * and r ij,⊥ * is the normal vector of r ij * with r ij * = r ij,// * +r ij,⊥ * . In all the simulations of this study, α DS is set as 0.95 and the sensitivity of results to this parameter is found to be negligible.…”

Section: (2) Enhanced Schemesmentioning

confidence: 99%

An Enhanced Fully Lagrangian Coupled MPS-based Solver for Fluid-Structure Interactions

Khayyer¹,

Gotoh²,

Park

et al. 2015

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal E

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The paper presents an enhanced fully-Lagrangian coupled solver for simulations of fluid-structure interactions. The solver is based on Moving Particle Semi-implicit (MPS) method which solves the governing equations corresponding to incompressible fluid flows as well as elastic structures and includes a consistent coupling algorithm. The presented model is an enhanced version of a previously developed FSI solver which benefits from a newly incorporated set of enhanced schemes for the fluid model as well as a refined calculation of fluid force to structure. The enhanced performance of the proposed solver is verified by reproducing a high velocity impact of a deformable aluminum beam on undisturbed water as well as a dam break with an elastic plate.

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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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Free surface flow impacting on an elastic structure: Experiment versus numerical simulation

Cited by 79 publications

References 16 publications

Lattice Boltzmann Method for Free Surface Impacting on Vertical Cylinder : A Comparison with Experimental Data

Lattice Boltzmann Method for Free Surface Impacting on Vertical Cylinder : A Comparison with Experimental Data

An Enhanced Fully Lagrangian Coupled MPS-based Solver for Fluid-Structure Interactions

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

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