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Author : Ole Secher Madsen
Publisher :
ISBN 13 :
Total Pages : 1015 pages
Book Rating : 4.:/5 (514 download)
Download or read book Mass Transport in Deep-water Waves written by Ole Secher Madsen and published by . This book was released on 1978 with total page 1015 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ming-Shun Chang
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (359 download)
Download or read book The Mass Transport in Deep Water Long Crested Random Gravity Waves written by Ming-Shun Chang and published by . This book was released on 1968 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chiang C. Mei
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (318 download)
Download or read book Mass Transport in Water Waves written by Chiang C. Mei and published by . This book was released on 1972 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a fluid is in periodic wave motion, a fluid particle is carried by a velocity field varying from place to place. At different instants the location of the particle differs and so does the velocity field in its immediate neighborhood. As a result the time-averaged velocity of a particle may be different from the local velocity field. In particular, a fluid particle may have a net mean drift even if the local velocity field has zero mean; this is indeed the case in irrotational gravity waves. In a viscous fluid, the wave-induced Reynolds stress imparts a steady momentum to the fluid; a steady shear is set up to balance it and hence a further mean velocity field results. The sum of these two steady currents provides the total drift by which a fluid particle migrates, and is termed the mass transport velocity. It is of importance to the study of sediment motion in coastal waters. The present report describes a coordinated inquiry into both theoretical and experimental aspects of mass transport by waves. In accordance with the division of effort, it is separated into two parts. However, nearly all ideas expressed and actions taken in both parts have been influenced by extensive mutual discussions. Part I (Theory) begins with a review of the basic assumptions underlying existing theories. General formulas of mass transport velocity components throughout the Stokes boundary layer near a solid body are then derived; details of two examples are calculated. The three-dimensional mass transport distribution throughout the cross section of a wave tank is worked out for progressive waves of very small amplitudes. The effects of finite width is studied with the assumption that vorticity is diffused by molecular viscosity throughout the entire cross section. For a wave obliquely incident and reflected from a vertical sea wall, the structure in the second boundary layer between the Stokes layer and the inviscid core is investigated. This is appropriate for amplitudes much greater than the Stokes layer thickness. Part II (Experiments), were intended in part to check and to evaluate the theoretical deductions in Part I. In particular, extensive measurements were made for the longitudinal mass transport velocity in a progressive wave in a long tank with a smooth bottom. For standing waves and partially standing waves, possible features of erosion and deposition were observed by spreading (1) a small amount of sand on a smooth bottom and (2) a thick layer of sand on the bottom. The relevance of mass transport very near the bottom to the bed load transport is discussed in the light of the real beach environment.
Author : Md. Habib Ullah
Publisher :
ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.:/5 (22 download)
Download or read book Mass Transport Under Waves in Shallow Water written by Md. Habib Ullah and published by . This book was released on 1983 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Cieslikiewicz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (131 download)
Download or read book Mass Transport Within the Free Surface Zone of Water Waves written by W. Cieslikiewicz and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohamed Iskandarani
Publisher :
ISBN 13 :
Total Pages : 334 pages
Book Rating : 4.E/5 ( download)
Download or read book Mass Transport in Two and Three-dimensional Water-waves written by Mohamed Iskandarani and published by . This book was released on 1991 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael De St. Q. Isaacson
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (121 download)
Download or read book Mass Transport in Cnoidal Waves written by Michael De St. Q. Isaacson and published by . This book was released on 1976 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tracings: 16.12.
Author : Chiang C. Mei
Publisher :
ISBN 13 :
Total Pages : 290 pages
Book Rating : 4.:/5 (227 download)
Download or read book Mass Transport in Water Waves. Part I. Theory. Part II. Experiments written by Chiang C. Mei and published by . This book was released on 1972 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a fluid is in periodic wave motion, the particles are carried by a varying velocity field. The location of a particle varies as does the immediate velocity field. Fluid particles may have a net mean drift even if the local velocity field has zero mean; this is the case in irrotational gravity waves. In viscous fluid, wave-induced Reynolds stress imparts steady momentum to the fluid; a steady shear is the set up to balance it, hence a further mean velocity field results. The sum of these two steady currents provides the total drift by which a fluid particle migrates, i.e. mass transport velocity. This report is a description of theoretical and experimental aspects of mass transport by waves. Part I reviews basic assumptions of existing theories. Part II checks and evaluates theoretical deductions in Part I. (Author).
Author : Lingyan Huang
Publisher : Open Dissertation Press
ISBN 13 : 9781361047279
Total Pages : pages
Book Rating : 4.0/5 (472 download)
Download or read book Mass Transport Due to Surface Waves in a Water-Mud System written by Lingyan Huang and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Mass Transport Due to Surface Waves in a Water-mud System" by Lingyan, Huang, 黃凌燕, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled MASS TRANSPORT DUE TO SURFACE WAVES IN A WATER-MUD SYSTEM submitted by Huang Lingyan for the degree of Doctor of Philosophy at The University of Hong Kong in October 2005 The objective of the present work is to investigate the mass transport due to surface waves in a water-mud system. To study the dynamics without the excessive mathematical complication, it is assumed that there exist two superimposed shallow homogeneous layers of fluids subject to a periodic external wave forcing on the free surface, where the upper-layer is clear water as a Newtonian viscous fluid and the lower-layer mud is a shear-thinning power-law non-Newtonian fluid. To conveniently handle the mass transport which is Lagrangian by nature, the Lagrangian coordinates are adopted in this work. In this thesis, the two-layer system problem is solved by different stages. First, the problem is simplified to a single uniform layer of power-law fluid mud lying on a horizontal rigid bed and subject to a periodic external pressure load on the free surface. In this part, we shall develop a fully discrete Fourier-Chebyshev collocation method to find solutions of the first- and second-order nonlinear equations of motion of the mud. In the second part, we shall present a theoretical study on the mass transport due to external forcing of a spatially and temporally periodic surface pressure in a two- ilayer Newtonian viscous system, where the upper-layer is a very low viscosity fluid (e.g. clear water) and the lower-layer mud is a highly viscous fluid (e.g. concentrated fluid mud). Based on the Lagrangian coordinates, a perturbation analysis is carried out to the second order to find the mean Lagrangian drifts in the two layers. The first-order variables including displacements, velocity and pressure are found as part of the solutions. The analytical expression is obtained for the mass transport velocity in each layer, respectively. Through some numerical cases, the effects of external forcing magnitude and different mud properties on the mass transport velocity are investigated. In the third stage, the mass transport due to the above-mentioned standing wave forcing in a water-mud system, in which the lower-layer mud is a shear-thinning power-law non-Newtonian fluid, is investigated by a Fourier-Chebyshev collocation spectral method in space and 4th-order finite-difference scheme in time discretization. First, based on the assumptions of shallowness and small deformations, a perturbation analysis is carried out to the second order to yield the nonlinear governing equations of motion in terms of the Lagrangian variables. In the two-layer system, the governing equations are cast into a coupled time-dependent partial differential equation group. The Fourier-Chebyshev collocation method developed in the first part is then used to discretize the spatial derivatives in conjunction with a 4th-order finite-difference scheme in time-discretization. At last, some discussion on the mass transport under waves in a two-layer system and the application of the spectral method to time-dependent convection- diffusion equations will be presented. ii DOI: 10.5353/th_b3538045 Subjects: Water waves Sediment transport - Mathematical models Mud Viscous flow Lagrangian functions
Author : Tae In Kim
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (12 download)
Download or read book Mass Transport in Laboratory Water Wave Flumes written by Tae In Kim and published by . This book was released on 1984 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete solution, exact to second-order, for wave motion forced by a hinged-wavemaker of variable-draft is presented. A solution for a piston type wavemaker is also obtained as a special case of a hinged-wavemaker with negative infinite draft. The existing Stokes inviscid theories for mass transport is extended to include higher-harmonic wave components. The effects of mass transport in a closed wave flume is studied with particular attention given to the return flow, changes in wave celerity (frequency), and to the surface drift velocity. The laboratory waves generated by a plane wave board are shown to be composed of two components; viz., a Stokes second-order wave and a second-harmonic free wave which travels at a different speed. The amplitude of the second-harmonic free wave is relatively large in shallow water and decreases to less than 10% of the amplitude of the primary wave in deep water. Wavemakers with relatively deeper draft (i.e., hinged near the bottom) generate the free waves of smaller amplitude in shallow and intermediate water depths than the wavemakers with shallow draft. However, the opposite is predicted by theory in deep water. The fifth-order theory for the Lagrangian motion of water particles gives good predictions for the mass transport velocity for Stokes waves. The existence of the secondary free wave in laboratory channels results in an increase in the mass transport velocity over the whole depth. For both a flap-type wavemaker hinged on the channel bottom and a piston-type wavemaker, the increase at the free-surface is within 13% of the values for the Stokes wave only, for the wave steepness parameter 0.02
Author : Robert L. Wiegel
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (359 download)
Download or read book Theoretical Study of the Mass Transport Phenomena of Waves written by Robert L. Wiegel and published by . This book was released on 1949 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. W. Gonsalves
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (359 download)
Download or read book Mass Transport in the Vocoidal Theory written by J. W. Gonsalves and published by . This book was released on 1985 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Beach Erosion Board
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.F/5 ( download)
Download or read book A Summary of the Theory of Oscillatory Waves written by United States. Beach Erosion Board and published by . This book was released on 1942 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Selwyn Longuet-Higgins
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (252 download)
Download or read book Mass transport numeration in water waves written by Michael Selwyn Longuet-Higgins and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michèle Planeix
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.E/5 ( download)
Download or read book Mass Transport Over and Under an Internal Wave in a Stratified Ocean written by Michèle Planeix and published by . This book was released on 1977 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Craig Shipp
Publisher : SEPM Soc for Sed Geology
ISBN 13 : 156576286X
Total Pages : 532 pages
Book Rating : 4.5/5 (657 download)
Download or read book Mass-transport Deposits in Deepwater Settings written by R. Craig Shipp and published by SEPM Soc for Sed Geology. This book was released on 2011 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, submarine-mass failures or mass-transport deposits have been a focus of increasingly intense investigation by academic institutions particularly during the last decade, though they received much less attention by geoscientists in the energy industry. With recent interest in expanding petroleum exploration and production into deeper water-depths globally and more widespread availability of high-quality data sets, mass-transport deposits are now recognized as a major component of most deep-water settings. This recognition has lead to the realization that many aspects of these deposits are still unknown or poorly understood. This volume contains twenty-three papers that address a number of topics critical to further understanding mass-transport deposits. These topics include general overviews of these deposits, depositional settings on the seafloor and in the near-subsurface interval, geohazard concerns, descriptive outcrops, integrated outcrop and seismic data/seismic forward modeling, petroleum reservoirs, and case studies on several associated topics. This volume will appeal to a broad cross section of geoscientists and geotechnical engineers, who are interested in this rapidly expanding field. The selection of papers in this volume reflects a growing trend towards a more diverse blend of disciplines and topics, covered in the study of mass-transport deposits.
Author : Chiang C. Mei
Publisher : World Scientific
ISBN 13 : 9812561587
Total Pages : 595 pages
Book Rating : 4.8/5 (125 download)
Download or read book Theory and Applications of Ocean Surface Waves: Nonlinear aspects written by Chiang C. Mei and published by World Scientific. This book was released on 2005 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an expanded version of The Applied Dynamics of Ocean Surface Waves. It presents theoretical topics on ocean wave dynamics, including basic principles and applications in coastal and offshore engineering as well as coastal oceanography. Advanced analytical and numerical techniques are applied, such as singular perturbations. In this expanded edition, two chapters on recent developments have been added: one is on multiple scattering by periodic or random bathymetry, and the other is on Zakharov's theory of broad spectrum wave fields. New sections include topics on infragravity waves, upstream solitons, Venice storm gates, etc. In addition, there are many new exercises. Theory and Applications of Ocean Surface Waves will be invaluable for graduate students and researchers in coastal and ocean engineering, geophysical fluid dynamicists interested in water waves, and theoretical scientists and applied mathematicians wishing to develop new techniques for challenging problems or to apply techniques existing elsewhere.
