PIV and Water Waves

PIV and Water Waves
Author: John Grue
Publisher: World Scientific
Total Pages: 356
Release: 2004
Genre: Science
ISBN: 9789812389497

- State-of-the-art overview of PIV applied to water waves - Invited articles, in carefully chosen fields, providing profound insight into the role of PIV in important applications - Updated overviews of the PIV method that will benefit newcomers to the field

Piv And Water Waves

Piv And Water Waves
Author: John Grue
Publisher: World Scientific
Total Pages: 350
Release: 2004-10-25
Genre: Science
ISBN: 9814482358

This volume introduces particle image velocimetry (PIV), a technique for water wave measurement in the laboratory and in the open ocean. It discusses the turbulent dissipation, Reynolds stresses and vortical structures in boundary layers of the sea bed, as well as ships, ship wakes, propulsion hydrodynamics, cavitation and free surface waves. Upwelling behind crests of micro-breaking ocean surface waves (important for the exchange of greenhouse gases between air and water) and large amplitude internal solitons in the ocean are measured. The book includes velocities and accelerations in breaking ocean waves, run-up, interaction between strong waves and breakwaters, as well as a concise description of the state-of-the-art PIV technique.This book has its origins in a meeting on PIV and water waves which was held in Cambridge in 2002. The main body of the book consists of six overview or in-depth articles by invited authors who are specialists in their respective fields, as well as practitioners of PIV. A complete set of abstracts from the meeting is enclosed. The book is well suited for scientists who want to acquaint themselves with current experimental hydrodynamics, as well as for researchers and graduate students who are already working in the field or plan to do so.

Numerical Modeling of Water Waves

Numerical Modeling of Water Waves
Author: Pengzhi Lin
Publisher: CRC Press
Total Pages: 500
Release: 2008-04-30
Genre: Technology & Engineering
ISBN: 1482265915

Modelling large-scale wave fields and their interaction with coastal and offshore structures has become much more feasible over the last two decades with increases in computer speeds. Wave modelling can be viewed as an extension of wave theory, a mature and widely published field, applied to practical engineering through the use of computer tools.

Water Waves: Theory And Experiment - Proceedings Of The Conference

Water Waves: Theory And Experiment - Proceedings Of The Conference
Author: Mohammad F Mahmood
Publisher: World Scientific
Total Pages: 214
Release: 2010-04-23
Genre: Science
ISBN: 9814465135

The objective of this book is to introduce new researchers to the rich dynamical system of water waves, and to show how (some) abstract mathematical concepts can be applied fruitfully in a practical physical problem and to make the connection between theory and experiment. It provides a coherent set of lectures on the current status of water wave theory, including identification of some open problems.

Flow Visualization and Image Analysis

Flow Visualization and Image Analysis
Author: F.T. Nieuwstadt
Publisher: Springer Science & Business Media
Total Pages: 279
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 9401126909

Progress in fluid mechanics depends heavily on the availability of good experimental data which can inspire new ideas and concepts but which are also necessary to check and validate theories and numerical calculations. With the advent of new recording and image analysis techniques new and promising experimental methods in fluid flows have presented themselves which are rather newly developed techniques such as particle tracking velocimetry (PTV), particle image velocimetry (PIV) and laser fluorescene (LIF). This volume presents state-of-the-art research on these techniques and their application to fluid flow. Selected papers from the EUROMECH conference on Image Analysis are published in this volume.

Water Wave Kinematics

Water Wave Kinematics
Author: A. Tørum
Publisher: Springer Science & Business Media
Total Pages: 751
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 9400905319

Water wave kinematics is a central field of study in ocean and coastal engineering. The wave forces on structures as well as sand erosion both on coastlines and in the ocean are to a large extent governed by the local distribution of velocities and accelerations of the water particles. Our knowledge of waves has generally been derived from measurements of the water surface elevations. The reason for this is that the surface elevations have been of primary interest and fairly cheap and reliable instruments have been developed for such measurements. The water wave kinematics has then been derived from the surface elevation information by various theories. However. the different theories for the calculation of water particle velocities and acceleration have turned out to give significant differences in the calculated responses of structures. In recent years new measurement techniques have made it possible to make accurate velocity measurements. Hence. the editors deemed it to be useful to bring together a group of experts working actively as researchers in the field of water wave kinematics. These experts included theoreticians as well as experimentalists on wave kinematics. It was also deemed useful to include experts on the response of structures to have their views from a structural engineering point of view on what information is really needed on water wave kinematics.

Advances in Numerical Simulation of Nonlinear Water Waves

Advances in Numerical Simulation of Nonlinear Water Waves
Author: Qingwei Ma
Publisher: World Scientific
Total Pages: 700
Release: 2010
Genre: Science
ISBN: 9812836497

Deals with numerical methods that have been employed to simulate nonlinear water waves. This book covers important applications, such as overturning waves, breaking waves, waves generated by landslides, freak waves, solitary waves, tsunamis, sloshing waves, interaction of extreme waves with beaches, and interaction with fixed structures.

Hydrodynamics Of Wave-vegetation Interactions

Hydrodynamics Of Wave-vegetation Interactions
Author: V Sriram
Publisher: World Scientific
Total Pages: 251
Release: 2023-10-12
Genre: Science
ISBN: 9811284156

Free-surface flow (or wave) interaction with vegetation is a complex subject. In order to understand the underlying physical processes either physical experiments or numerical simulations, or ideally in complement, can be employed. Both approaches face lots of challenges. For example in experiments, the research question is how to scale-down appropriately the large-scale physics and how to interpret the experimental data. In numerical simulations, how to approximate numerically the complex wave-multiple rigid or flexible structures (vegetal stems) including the resolution of turbulence at all spatial and temporal scales.This book reviews the state of the art of the research in the area of wave-vegetation interaction for coastal applications using numerical and experimental approaches. The reference text will be useful to students, early-career researchers, teachers and practicing engineers in the field of ocean engineering, civil engineering and climate change.

Breaking and Dissipation of Ocean Surface Waves

Breaking and Dissipation of Ocean Surface Waves
Author: Alexander Babanin
Publisher: Cambridge University Press
Total Pages: 479
Release: 2011-05-19
Genre: Science
ISBN: 1139502727

Wave breaking represents one of the most interesting and challenging problems for fluid mechanics and physical oceanography. Over the last fifteen years our understanding has undergone a dramatic leap forward, and wave breaking has emerged as a process whose physics is clarified and quantified. Ocean wave breaking plays the primary role in the air-sea exchange of momentum, mass and heat, and it is of significant importance for ocean remote sensing, coastal and ocean engineering, navigation and other practical applications. This book outlines the state of the art in our understanding of wave breaking and presents the main outstanding problems. It is a valuable resource for anyone interested in this topic, including researchers, modellers, forecasters, engineers and graduate students in physical oceanography, meteorology and ocean engineering.

Wave Kinematics and Environmental Forces

Wave Kinematics and Environmental Forces
Author: Society for Underwater Technology (SUT)
Publisher: Springer Science & Business Media
Total Pages: 337
Release: 2013-03-14
Genre: Technology & Engineering
ISBN: 9401736634

In determining the response of offshore structures, it is of utmost importance to determine, in the most correct manner, all factors which contribute to the total force acting on these structures. Applying the Morison formula (Morison et. al. , 1950) to calculate forces on offshore slender structures, uncertainties related to the understanding of the wave climate, the hydrodynamic force coefficients and the kinematics of ocean waves represent the most important contributions to the uncertainties in the prediction of the total forces on these structures (Haver and Gudmestad, 1992). Traditional calculation of forces on offshore structures involves the use of regular waves with the following non-linearities inco1porated use of regular wave theories inco1porating higher order terms use of Morison equation having a nonlinear drag term inclusion of the effect of the free surface by integrating all contributions to total forces and moments from the sea floor to the free surface of the waves In order to describe the sea more realistically, the ocean surface is to be described as an irregular sea surface represented by its energy spectrum. The associated decomposition of the sea surface is given as a linear sum of linear waves. The total force is found by integrating the contribution from all components in the wave spectrum to the free surface. The kinematics of each component must therefore be determined.