نتایج جستجو برای: induced wave breaking and bottom friction present reasonable resultsshallow

تعداد نتایج: 17135752  

1997
S. T. Grilli

Shoaling and breaking of solitary waves is computed on slopes 1:100 to 1:8 using an experimentally validated fully nonlinear wave model based on potential flow equations. Characteristics of waves are computed at and beyond the breaking point, and geometric self-similarities of breakers are discussed as a function of wave height and bottom slope. No wave breaks for slopes steeper than 12 . A bre...

Journal: :international journal of maritime technology 0
amin mahmoudi faculty of civil engineering, persian gulf university, bushehr, iran habib hakimzadeh faculty of civil engineering, sahand university of technology, tabriz mohammad javad ketabdari faculty of marine technology, amirkabir university of technology, tehran amir etemadshahidi griffith school of engineering, griffith university, queensland,4222, australia nick cartwright griffith school of engineering, griffith university, queensland,4222, australia hassan abyn assistant professor of naval architecture, persian gulf university, bushehr

breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. hence, modeling of wave breaking is an important subject in coastal and marine engineering. in this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. laboratory experiments were conducted to record water surface ele...

Journal: :Mathematical and Computational Applications 2004

2006
TIFFANY A. SHAW THEODORE G. SHEPHERD

The robustness of the parameterized gravity wave response to an imposed radiative perturbation in the middle atmosphere is examined. When momentum is conserved and for reasonable gravity wave drag parameters, the response to a polar cooling induces polar downwelling above the region of the imposed cooling, with consequent adiabatic warming. This response is robust to changes in the gravity wave...

2012
Bruno Voisin Sylvain Joubaud Thierry Dauxois

Internal tides, generated in the density-stratified ocean by the oscillation of the barotropic tide over bottom topography, play a crucial role in the energy balance of the Earth–Moon system [1]. This has led to a recent revival of the classical topic of internal gravity wave generation by oscillating bodies. Wave energy dissipates owing to wave breaking and suband superharmonic excitation, at ...

2016
K. Singh

In this paper, the authors have analyzed the quasi-static frictional sliding of a springblock slider system under the Rate-State Friction (RSF) formalism with three state variables. The study of 3-state RSF systems have not been carried out in the literature, the authors claim that this warrants the study of mechanical behavior of such systems. I feel that that this is not justifiable scientifi...

Journal: :Journal of Marine Science and Engineering 2021

Classical eddy viscosity model deviates from the actual mean current profiles, when calculating profiles over rippled-beds in presence of non-breaking waves, owing to neglect enhancement wave boundary layer thickness by ripples and wave-induced shear stress (the radiation Reynolds stress). Considering these shortcomings, a semi-empirical one-dimensional vertical (1DV) is presented this study. T...

2007
G. Jordà R. Bolaños M. Espino A. Sánchez-Arcilla

The effects of wave-current interactions on shelf ocean forecasts is investigated in the framework of the MFSTEP (Mediterranean Forecasting System Project Towards Enviromental Predictions) project. A one way sequential coupling approach is adopted to link the wave model (WAM) to the circulation model (SYMPHONIE). The coupling of waves and currents has been done considering four main processes: ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران 1388

target tracking is the tracking of an object in an image sequence. target tracking in image sequence consists of two different parts: 1- moving target detection 2- tracking of moving target. in some of the tracking algorithms these two parts are combined as a single algorithm. the main goal in this thesis is to provide a new framework for effective tracking of different kinds of moving target...

2010
Christian F. Janssen Stéphan T. Grilli Manfred Krafczyk

In this work, we report on the development and initial validation of a new hybrid numerical model for strongly nonlinear free surface flows, including wave breaking and wave-structure interactions. Specifically, a two-dimensional numerical wave tank (NWT) based on Fully Nonlinear Potential Flow (FNPF) theory, and a higher-order Boundary Element Method (BEM), is used to simulate fully nonlinear ...

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