A study on slamming pressure on a flat stiffened plate considering fluid–structure interaction

Cheon, Jin Sol; Jang, Beom-Seon; Yim, Ki Ho; Lee, Hoseong Daniel; Koo, Bonyong; Ju, Han-Baek

doi:10.1007/s00773-015-0353-y

Cited by 20 publications

(6 citation statements)

References 7 publications

(13 reference statements)

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“…Souli and Benson [9] highlighted the capability of penalty coupling algorithms by simulating a 2D wedge with 10 deadrise angle and demonstrated that the local peak pressure is sensitive to the penalty factor. Cheon et al [10] used the ALE algorithm to simulate the water entry problem of a deformable flat stiffened panel. They examined the effects of mesh sensitivity, structural flexibility, and penalty factors on the results.…”

Section: Introductionmentioning

confidence: 99%

“…They examined the effects of mesh sensitivity, structural flexibility, and penalty factors on the results. The effect of damping factors on the impact loads was not considered in their study [10]. A study of the numerical uncertainty caused by discretization for the ALE method in predicting impact-induced loads on rigid and elastic flat plates was conducted by Wang et al [11].…”

Section: Introductionmentioning

confidence: 99%

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A Numerical Sensitivity Analysis of Fluid-Structure Interaction Simulations on Slamming Loads and Responses

Hosseinzadeh

Topa

Tabri

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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This paper presents a parametric study on the Multi Material Arbitrary Lagrangian–Eulerian (MMALE) method for hydroelastic analysis of a non-prismatic stiffened aluminium wedge. An explicit finite element formulation with a penalty-based coupling technique is employed to evaluate the impact-induced loads and responses during free-fall water entry. Based on the penalty factor, damping factor, and number of coupling points, a sensitivity analysis is carried out. It is shown that the penalty coupling method can generate high-frequency oscillations due to the nature of the phenomenon that may affect the predicted results of slamming loads. The computed results on the stiffened and unstiffened plates of the wedge are compared with published experimental data in terms of vertical acceleration, pressure distributions, and strain responses at different locations. A reasonable agreement can be found between the numerical results and the measured values. It is found that a combination of penalty and damping can improve the simulation results and reduce numerical instabilities in hydroelastic slamming simulations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Numerical Sensitivity Analysis of Fluid-Structure Interaction Simulations on Slamming Loads and Responses

Hosseinzadeh

Topa

Tabri

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…It is worth highlighting how, in the recent past, due to the increased computational power availability, many efforts have been devoted in defining models for the contemporary solution of both fluid and solid motion/deformation [19]. In naval application, this reflects always increasing attention to the analysis of impulsive loads due to slamming of rigid/deformable wedges/obstacles [20,21]. With respect to lattice Boltzmann method (LBM), many studies have already been carried out considering both rigid and flexible obstacles interacting with fluid flows [22].…”

Section: Introductionmentioning

confidence: 99%

Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model

Chiappini

2020

Water

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In this study, the capabilities of a coupled KBC-free surface model to deal with fluid solid interactions with the slamming of rigid obstacles in a calm water tank were analyzed. The results were firstly validated with experimental and numerical data available in literature and, thereafter, some additional analyses was carried out to understand the main parameters’ influence on slamming coefficient. The effect of grid resolution and Reynolds number were firstly considered to choose the proper grid and to present the weak impact of such a non-dimensional number on process evolution. Hence, the influence of Froude number on fluid-dynamics quantities was pointed out considering vertical impacts of both cylindrical, as in the references, and ellipsoidal obstacles. Different formulations of slamming coefficient were used and compared. Results are pretty encouraging and they confirm the effectiveness of lattice Boltzmann model to deal with such a problem. This leaves the door open to additional improvements addressed to the study of free buoyant bodies immersed in a fluid domain.

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“…For instance, aero-elasticity couples a stiff structure with a light and possibly compressible fluid [39], while in bio-engineering a very flexible structure and an incompressible fluid with comparable densities are coupled [13]. In naval or marine engineering structures interact with a free surface flows and are subject to a slamming pressure impulsive load [12,[40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Fluid Structure Interaction of Buoyant Bodies with Free Surface Flows: Computational Modelling and Experimental Validation

Facci

Falcucci

Agresta

et al. 2019

Water

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In this paper we present a computational model for the fluid structure interaction of a buoyant rigid body immersed in a free surface flow. The presence of a free surface and its interaction with buoyant bodies make the problem very challenging. In fact, with light (compared to the fluid) or very flexible structures, fluid forces generate large displacements or accelerations of the solid and this enhances the artificial added mass effect. Such a problem is relevant in particular in naval and ocean engineering and for wave energy harvesting, where a correct prediction of the hydrodynamic loading exerted by the fluid on buoyant structures is crucial. To this aim, we develop and validate a tightly coupled algorithm that is able to deal with large structural displacement and impulsive acceleration typical, for instance, of water entry problems. The free surface flow is modeled through the volume of fluid model, the finite volume method is utilized is to discretize the flow and solid motion is described by the Newton-Euler equations. Fluid structure interaction is modeled through a Dirichlet-Newmann partitioned approach and tight coupling is achieved by utilizing a fixed-point iterative procedure. As most experimental data available in literature are limited to the first instants after the water impact, for larger hydrodynamic forces, we specifically designed a set of dedicated experiments on the water impact of a buoyant cylinder, to validate the proposed methodology in a more general framework. Finally, to demonstrate that the proposed numerical model could be used for a wide range of engineering problems related to FSI in multiphase flows, we tested the proposed numerical model for the simulation of a floating body.

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A study on slamming pressure on a flat stiffened plate considering fluid–structure interaction

Cited by 20 publications

References 7 publications

A Numerical Sensitivity Analysis of Fluid-Structure Interaction Simulations on Slamming Loads and Responses

A Numerical Sensitivity Analysis of Fluid-Structure Interaction Simulations on Slamming Loads and Responses

Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model

Fluid Structure Interaction of Buoyant Bodies with Free Surface Flows: Computational Modelling and Experimental Validation

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