Journal ArticleDOI
Wave impact loads: The role of the flip-through
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TLDR
In this article, the impact of waves upon a vertical, rigid wall during sloshing is analyzed with specific focus on the modes that lead to the generation of a flip-through.Abstract:
The impact of waves upon a vertical, rigid wall during sloshing is analyzed with specific focus on the modes that lead to the generation of a flip-through [M. J. Cooker and D. H. Peregrine, “A model for breaking wave impact pressures,” in Proceedings of the 22nd International Conference on Coastal Engineering (ASCE, Delft, 1990), Vol. 2, pp. 1473–1486]. Experimental data, based on a time-resolved particle image velocimetry technique and on a novel free-surface tracking method [M. Miozzi, “Particle image velocimetry using feature tracking and Delaunay tessellation,” in Proceedings of the 12th International Symposium on Applications of Laser Techniques to Fluid Mechanics (2004)], are used to characterize the details of the flip-through dynamics while wave loads are computed by integrating the experimental pressure distributions. Three different flip-through modes are observed and studied in dependence on the amount and modes of air trapping. No air entrapment characterizes a “mode (a) flip-through,” engulfm...read more
Citations
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Free-surface flows solved by means of SPH schemes with numerical diffusive terms
TL;DR: A novel system of equations has been defined which contains diffusive terms in both the continuity and energy equations and, at the leading order, coincides with a standard weakly-compressible SPH scheme with artificial viscosity, showing to be robust, efficient and accurate.
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Main results of the third international PIV Challenge
TL;DR: The present contribution states the objectives of the challenge, describes the test cases and the algorithms used by the participants, and presents the main results together with some discussion and conclusions on the accuracy and robustness of various PIV and PTV algorithms.
Journal ArticleDOI
Experimental investigation of dynamic pressure loads during dam break
TL;DR: In this paper, the authors conduct experimental measurements on a dam break flow over a horizontal dry bed in order to provide a detailed insight, with emphasis on the pressure loads, into the dynamics of the dam break wave impacting a vertical wall downstream the dam.
Experimental investigation of dynamic pressure loads during dam break
TL;DR: In this paper, the authors revisited the experimental measurements on dam break flow over a dry horizontal bed and provided a detailed insight into the dynamics of the dam break wave impacting a vertical wall downstream the dam, with emphasis on the pressure loads.
Journal ArticleDOI
Particle methods in ocean and coastal engineering
TL;DR: In this paper, a review of particle methods in hydrodynamics-related problems in ocean and coastal engineering is presented, where the problems are placed into three categories according to their physical characteristics, namely, wave hydrodynamic and corresponding mass transport, wave-structure interaction, and wave-current-sediment interaction.
References
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Journal ArticleDOI
Water-wave impact on walls
TL;DR: In this paper, the authors focus on the results of theoretical work, making particular note of the value of considering pressure impulse, and highlight the aspects that are poorly understood, including the role of entrained and trapped air in wave impacts.
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Wave impact pressure on vertical walls under breaking waves of various types
TL;DR: In this article, the authors studied the physics and characteristics of impact pressure due to collisions of breaking waves against a vertical wall and found that when a small amount of air is entrapped between the breaking wave and the wall at the collision, the impact pressure increases considerably.
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Pressure-impulse theory for liquid impact problems
Mark J. Cooker,D. H. Peregrine +1 more
TL;DR: In this article, a mathematical model for the high pressures and sudden velocity changes which may occur in the impact between a region of incompressible liquid and either a solid surface or a second liquid region is presented.
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Deep-water plunging wave pressures on a vertical plane wall
E. S. Chan,W. K. Melville +1 more
TL;DR: In this paper, the authors present a systematic study of the impact pressure on a vertical wall resulting from controlled, plunging waves in deep water, and they show that impact occurs through the focusing of the incident wave front onto the wall, trapping some amount of air in the process.