نتایج جستجو برای: overtopping

تعداد نتایج: 773  

2014
Mitchell L. Neilsen

Windows TM Dam Analysis Modules (WinDAM) is a set of modular software components that can be used to analyze overtopped earthen embankments and internal erosion of embankment dams. These software components are being developed in stages. The initial computational modules address routing of floods through the reservoir with dam overtopping and evaluation of the potential for vegetation or riprap...

2013
H. Chanson

For the last fifty years, the design floods of a number of embankment dams were re-evaluated and the revised spillway outflows are often larger than the original design discharges. Several embankment overtopping protection systems were developed for earthfill structures, and the applications range from river dykes to tsunami protections including embankment dams. Well-known designs include timb...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
A S Chen S Djordjević J Leandro D A Savić

Intense rainfall in urban areas often generates both pluvial flooding due to the limited capacity of drainage systems, as well as fluvial flooding caused by deluges from river channels. The concurrence of pluvial and fluvial flooding can aggravate their (individual) potential damages. To analyse the impact caused by individual and composite type of flooding, the SIPSON/UIM model, an integrated ...

2013
Mitchell L. Neilsen

Windows TM Dam Analysis Modules (WinDAM) is a set of modular software components that can be used to analyze overtopped earthen embankments and internal erosion of embankment dams. These software components are being developed in stages. The initial computational modules address routing of floods through the reservoir with dam overtopping and evaluation of the potential for vegetation or riprap...

2013
Marco Tedesco Ian C Willis Matthew J Hoffman Alison F Banwell Patrick Alexander Neil S Arnold

Supraglacial lake drainage on the Greenland ice sheet opens surface-to-bed connections, reduces basal friction, and temporarily increases ice flow velocities by up to an order of magnitude. Existing field-based observations of lake drainages and their impact on ice dynamics are limited, and focus on one specific draining mechanism. Here, we report and analyse global positioning system measureme...

2003
W. Knapp

The Wave Dragon is a wave energy converter of the overtopping type which has been developed by a European consortium during the last five years. It uses a set of low head water turbines as power takeoff system. In the course of a two year research programme the basic conception of the turbines has been established, the turbine geometry has been designed and a model turbine has been built and te...

Journal: :Environmental Modelling and Software 2010
Joan Pau Sierra D. González-Marco Marc Mestres Xavier Gironella Tiago C. A. Oliveira I. Cáceres César Mösso

In this paper, an energetic wave propagation model that reproduces shoaling, refraction, diffraction, waveecurrent interaction, bottom friction and wave breaking is modified to simulate also the processes of overtopping and wave transmission over and through permeable coastal structures. This enhances the capabilities of the model and allows to obtain, at a low computational cost, a better repr...

Journal: :Journal of Fluid Mechanics 2023

The collision of a gravitationally-driven horizontal current with barrier following release from confining lock is investigated using shallow water model the motion, together sophisticated boundary condition capturing local interaction. permits several overtopping modes: supercritical, subcritical, and blocked flow. analysed both mathematically numerically to reveal aspects unsteady motion comp...

2012
Mariano Buccino Davide Banfi Diego Vicinanza Mario Calabrese Giuseppe Del Giudice Armando Carravetta

The Seawave Slotcone Generator (WAVEnergy SAS, 2003) is a wave energy converter based on the overtopping principle. Although it has been effectively researched during the last decade, no design tool has been supplied to estimate the hydrodynamic loads the waves exert on its front face. In this article a set of well reliable 3D experiments has been re-analyzed, in order to get indications on pos...

2009
Christopher S. Stuetzle Zhongxian Chen Katrina Perez Jared Gross Barbara Cutler W. Randolph Franklin Thomas Zimmie

1 Motivation The New Orleans area levee failures during Hurricane Katrina drew media attention to an important problem in Civil Engineering. The emphasis of our work is on earthen levees, dams, and embankments. A major cause of failures of such structures is overtopping, which causes erosion to the point of breaching the crest. Our research focuses on simulating the initial small-scale features...

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