Hydrodynamic impact: Numerical and experimental investigations

Peseux, Bernard; Gornet, Laurent; Donguy, Bundy

doi:10.1016/j.jfluidstructs.2005.04.011

Cited by 75 publications

(46 citation statements)

References 15 publications

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“…Several scientists [27][28][29][30][31][32][33][34][35][36][37] investigated the water impact of elastic structures,…”

Section: Chaptermentioning

confidence: 99%

Hydroelastic Impacts of Deformable Wedges

Panciroli

2012

Dynamic Failure of Composite and Sandwich Structures

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This work investigates the slamming phenomenon experienced during the water entry of deformable bodies. Wedges are chosen as reference geometry due to their similarity to a generic hull section. Hull slamming is a phenomenon occurring when a ship re-enters the water after having been partially or completely lifted out the water. There are three more cases commonly defined as slamming in marine applications: bow-flare, wet-deck and green water slamming. These are all special cases of the general topic of water entry of a body. While the analysis of rigid structures entering the water has been extensively studied in the past and there are analytical solutions capable of correctly predicting the hydrodynamic pressure distribution and the overall impact dynamics, the effect of the structural deformation on the structural force is still a challenging problem to be solved. In fact, in case

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“…Several scientists [27][28][29][30][31][32][33][34][35][36][37] investigated the water impact of elastic structures,…”

Section: Chaptermentioning

confidence: 99%

Hydroelastic Impacts of Deformable Wedges

Panciroli

2012

Dynamic Failure of Composite and Sandwich Structures

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“…Applications of that research are the design of floating wave energy converters [186] and composite ship hulls [148,187].…”

Section: Introductionmentioning

confidence: 99%

Partitioned Simulation of Fluid-Structure Interaction

Degroote¹

2013

Arch Computat Methods Eng

123

107

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In this review article, the focus is on partitioned simulation techniques for strongly coupled fluid-structure interaction problems, especially on techniques which use at least one of the solvers as a black box. First, a number of analyses are reviewed to explain why Gauss-Seidel coupling iterations converge slowly or not at all for fluid-structure interaction problems with strong coupling. This provides the theoretical basis for the fast convergence of quasi-Newton and multi-level techniques. Second, several partitioned techniques that couple two black-box solvers are compared with respect to implementation and performance. Furthermore, performance comparisons between partitioned and monolithic techniques are examined. Subsequently, two similar techniques to couple a black-box solver with an accessible solver are analyzed. In addition, several other techniques for fluid-structure interaction simulations are studied and various methods to take into account deforming fluid domains are discussed.

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“…Nowadays, the Wagner principle is still used in some numerical solvers, e.g. that of Peseux et al [1]. With the current evolution in computer power, CFD models are also increasingly used for simulations of slamming phenomena [18][19][20][21][22].…”

Section: Slamming Loadsmentioning

confidence: 99%

“…Slamming phenomena may cause local plastic deformation of the material, and have resulted in ship losses in extreme load cases [1]. However, both the extreme load cases and the operational conditions under which regular bottom slamming occurs, resulting in fatigue of the material, are important.…”

Section: Introductionmentioning

confidence: 99%

Bottom slamming on heaving point absorber wave energy devices

et al. 2010

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Oscillating point absorber buoys may rise out of the water and be subjected to bottom slamming upon reentering the water. Numerical simulations are performed to estimate the power absorption, the impact velocities and the corresponding slamming forces for various slamming constraints. Three buoy shapes are considered: a hemisphere and two conical shapes with deadrise angles of 30°a nd 45°, with a waterline diameter of 5 m. The simulations indicate that the risk of rising out of the water is largely dependent on the buoy draft and sea state. Although associated with power losses, emergence occurrence probabilities can be significantly reduced by adapting the control parameters. The magnitude of the slamming load is severely influenced by the buoy shape. The ratio between the peak impact load on the hemisphere and that on the 45°c one is approximately 2, whereas the power absorption is only 4-8% higher for the 45°cone. This work illustrates the need to include slamming considerations aside from power absorption criteria in the buoy shape design process and the control strategy.

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Hydrodynamic impact: Numerical and experimental investigations

Cited by 75 publications

References 15 publications

Hydroelastic Impacts of Deformable Wedges

Hydroelastic Impacts of Deformable Wedges

Partitioned Simulation of Fluid-Structure Interaction

Bottom slamming on heaving point absorber wave energy devices

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