Application of Short-crested Wave Theory in the Design of Three Dimensional Coastal Hydrodynamic Models PDF Download
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Author: William Leo Wood
Publisher:
ISBN:
Category : Bathing beaches
Languages : en
Pages : 72
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Book Description
In spring 1973 a series of field experiments was initiated to investigate the three dimensional structure of a coastal hydrodynamic system. These field investigations supported the concept that short-crested wave theory is applicable to modeling of incident wind-wave transformations from offshore to the outer surf zone. Application of short-crested wave theory to the design of coastal hydrodynamic models was also considered appropriate because of the theories inherent three dimensional structure. Concurrent with this work two field experiments were conducted in 1974 and 1976 to measure vertical and horizontal distribution of longshore current velocity and to monitor temporal variations in current velocity at a point. In fall 1978 a series of experimental laboratory investigations was initiated to make precise measurements, at close spatial intervals, of wave height decay after breaking. These experiments were carried out to determine a wave height decay expression based upon the assumption that an appropriate physical conceptualization of wave energy dissipation after breaking must consider turbulence dominant to bottom friction. This report presents a detailed summary of these investigations and their results. (Author).
Author: William Leo Wood
Publisher:
ISBN:
Category : Bathing beaches
Languages : en
Pages : 72
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Book Description
In spring 1973 a series of field experiments was initiated to investigate the three dimensional structure of a coastal hydrodynamic system. These field investigations supported the concept that short-crested wave theory is applicable to modeling of incident wind-wave transformations from offshore to the outer surf zone. Application of short-crested wave theory to the design of coastal hydrodynamic models was also considered appropriate because of the theories inherent three dimensional structure. Concurrent with this work two field experiments were conducted in 1974 and 1976 to measure vertical and horizontal distribution of longshore current velocity and to monitor temporal variations in current velocity at a point. In fall 1978 a series of experimental laboratory investigations was initiated to make precise measurements, at close spatial intervals, of wave height decay after breaking. These experiments were carried out to determine a wave height decay expression based upon the assumption that an appropriate physical conceptualization of wave energy dissipation after breaking must consider turbulence dominant to bottom friction. This report presents a detailed summary of these investigations and their results. (Author).
Author: Hitoshi Gotoh
Publisher: World Scientific Publishing Company
ISBN: 9814449725
Category : Technology & Engineering
Languages : en
Pages : 251
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Book Description
This book provides a comprehensive description of the latest theory-supported numerical technologies, as well as scientific and engineering applications for water surface waves. Its contents are crafted to cater to a step-by-step learning of computational wave dynamics and ocean wave modeling. It provides a comprehensive description from underlying theories of free-surface flows, to practical computational applications for coastal and ocean engineering on the basis of computational fluid dynamics (CFD).The text may be used as a textbook for advanced undergraduate students and graduate students to understand the theoretical background of wave computations, and the recent progress of computational techniques for free-surface and interfacial flows, such as Volume of Fluid (VOF), Constrained Interpolation Profile (CIP), Lagrangian Particle (SPH, MPS), Distinct Element (DEM) and Euler-Lagrange Hybrid Methods.It is also suitable for researchers and engineers who wish to apply CFD techniques to ocean modeling and practical coastal problems involving sediment transport, wave-structure interaction and surf zone flows.
Author: Y. Peter Sheng
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 314
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Book Description
Author: Norman S. Heaps
Publisher: American Geophysical Union
ISBN:
Category : Nature
Languages : en
Pages : 232
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Book Description
Published by the American Geophysical Union as part of the Coastal and Estuarine Sciences, Volume 4. The AGU Monograph Series on Coastal and Estuarine Regimes provides timely summaries and reviews of major process and regional studies, both observational and theoretical, and of theoretical and numerical models. It grew out of an IAPSO/SCOR/ECOR working group initiative several years ago intended to enhance scientific communications on this topic. The series' authors and editors are drawn from the international community. The ultimate goal is to stimulate bringing the theory, observations, and modeling of coastal and estuarine regimes together on the global scale.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 230
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Book Description
Author: Reza Ghiassi
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
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Book Description
Three-dimensional hydrodynamic modelling of estuarine and coastal basins is an efficient means of analysing and predicting water flow characteristics for further use in sedimentation, morphological and environmental studies. To date, two-stage solution schemes have generally been used in such models, whereas in this thesis a one-stage solution formulation is introduced and applied for three-dimensional coastal hydrodynamic modelling. The governing hydrodynamic equations are reviewed in their integral form by satisfying the conservation laws of mass and momentum and rewriting them in their differential equation form for a three-dimensional spatial domain. The original continuity equation is modified for the cells in the surface layer of a multi-layer computational domain, giving rise to the establishment of the one-stage solution algorithm. The general momentum equations are rewritten, with regard to the conditions applicable to coastal waters. The integral form of the governing hydrodynamic equations have been discretized by applying the finite volume method. An orthogonal Cartesian co-ordinate system have been chosen for discretizing the computational domain. The equations have been discretized for mesh cells within the boundary and, consequently, corrections made to the discretized equations for the cells adjacent to a boundary. The one-stage solution formulation is explained in detail for solving the discretized equations using the Alternating Direction Implicit scheme. A new computer model, namely THEMFIV, has been developed for three-dimensional numerical flow simulation, based upon the one-stage algorithm. A series of experimental tests, undertaken for a laboratory model rectangular harbour, are detailed. The measured velocity values are presented to show the velocity field profile within the rectangular harbour. The numerical model has been run for several case studies to simulate (1) two-dimensional tidal circulation in the rectangular harbour, (2) three-dimensional flow.
Author: Charles L. Mader
Publisher: CRC Press
ISBN: 0203492196
Category : Mathematics
Languages : en
Pages : 289
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Book Description
Numerical Modeling of Water Waves, Second Edition covers all aspects of this subject, from the basic fluid dynamics and the simplest models to the latest and most complex, including the first-ever description of techniques for modeling wave generation by explosions, projectile impacts, asteroids, and impact landslides. The book comes packaged with
Author: Technology Reports Centre (Great Britain)
Publisher:
ISBN:
Category :
Languages : en
Pages : 622
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Book Description
Author:
Publisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 886
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Book Description
Author: J.C.J. Nihoul
Publisher: Elsevier
ISBN: 008087083X
Category : Science
Languages : en
Pages : 643
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Book Description
These proceedings represent the most recent and complete state of the art review of three-dimensional models of the modern generation for the study of marine hydrodynamics and management of the marine system. The book is well illustrated by application to well-documented case studies.
