Hydrodynamics Of Speed On The Water
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Hydrodynamics Of Speed On The Water
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Author : Hans O S Küffner-McCauley
language : en
Publisher:
Release Date : 2020-03-03
Hydrodynamics Of Speed On The Water written by Hans O S Küffner-McCauley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-03 with categories.
High speed boats necessarily use surface-piercing propellers, but there is very little literature available on surface piercing. My aim is to quantify what I have understood about speed on the water from theory and practice combined. I'm uniquely qualified to write about the combination of fast planing hulls, propellers, and hydrodynamics. I know how a race boat feels under all conditions from 60-85 mph from driving successfully in competition. I have reworked and improved many existing propellers for racing and also for better performance on sport boats. I do my own work on boat bottoms, propellers, and motors. I've set nine outboard speed records, have won four national championships, and I was twice US-1 in my class. On the other side of the coin I'm physics professor with adequate theoretical background in vortex theory and hydrodynamics more generally. The completely new results, not found elsewhere in the literature, are: power-diameter-RPM scaling for propellers and comparison with speed record data, inadequacy of all available measurements of torque coefficients in surface piercing, the difference between efficient surface piercing and supercavitation, complete set of equations (using the mean camber surface to define pitch and camber) for the design of a cleaver from hub to tip, definition of path pitch, use of path pitch to determine the parabolic camber, photos of 3D CAD drawings and 3D printed out models, idealized calculations of torque coefficients and efficiencies, speed-power- weigh scaling law and comparison with existing speed records, clear definition of lift onset, clear definition of planning, lift on monohulls and tunnels, center of pressure and stability of tunnels, estimation of lift coefficient for a v-bottom/tunnel sponson and comparison with data
Hydrodynamics Of High Speed Marine Vehicles
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Author : Odd M. Faltinsen
language : en
Publisher: Cambridge University Press
Release Date : 2006-01-09
Hydrodynamics Of High Speed Marine Vehicles written by Odd M. Faltinsen and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-09 with Technology & Engineering categories.
Hydrodynamics of High-Speed Marine Vehicles, first published in 2006, discusses the three main categories of high-speed marine vehicles - vessels supported by submerged hulls, air cushions or foils. The wave environment, resistance, propulsion, seakeeping, sea loads and manoeuvring are extensively covered based on rational and simplified methods. Links to automatic control and structural mechanics are emphasized. A detailed description of waterjet propulsion is given and the effect of water depth on wash, resistance, sinkage and trim is discussed. Chapter topics include resistance and wash; slamming; air cushion-supported vessels, including a detailed discussion of wave-excited resonant oscillations in air cushion; and hydrofoil vessels. The book contains numerous illustrations, examples and exercises.
Hydrodynamics And Transport For Water Quality Modeling
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Author : James L. Martin
language : en
Publisher: CRC Press
Release Date : 1998-12-15
Hydrodynamics And Transport For Water Quality Modeling written by James L. Martin and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-12-15 with Technology & Engineering categories.
Hydrodynamics and Transport for Water Quality Modeling presents a complete overview of current methods used to describe or predict transport in aquatic systems, with special emphasis on water quality modeling. The book features detailed descriptions of each method, supported by sample applications and case studies drawn from the authors' years of experience in the field. Each chapter examines a variety of modeling approaches, from simple to complex. This unique text/reference offers a wealth of information previously unavailable from a single source. The book begins with an overview of basic principles, and an introduction to the measurement and analysis of flow. The following section focuses on rivers and streams, including model complexity and data requirements, methods for estimating mixing, hydrologic routing methods, and unsteady flow modeling. The third section considers lakes and reservoirs, and discusses stratification and temperature modeling, mixing methods, reservoir routing and water balances, and dynamic modeling using one-, two-, and three-dimensional models. The book concludes with a section on estuaries, containing topics such as origins and classification, tides, mixing methods, tidally averaged estuary models, and dynamic modeling. Over 250 figures support the text. This is a valuable guide for students and practicing modelers who do not have extensive backgrounds in fluid dynamics.
Advances In Marine Hydrodynamics
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Author : M. Ohkusu
language : en
Publisher: Computational Mechanics
Release Date : 1996
Advances In Marine Hydrodynamics written by M. Ohkusu and has been published by Computational Mechanics this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Science categories.
Hydrodynamics And Water Quality
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Author : Zhen-Gang Ji
language : en
Publisher: John Wiley & Sons
Release Date : 2017-05-09
Hydrodynamics And Water Quality written by Zhen-Gang Ji and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-09 with Technology & Engineering categories.
The primary reference for the modeling of hydrodynamics and water quality in rivers, lake, estuaries, coastal waters, and wetlands This comprehensive text perfectly illustrates the principles, basic processes, mathematical descriptions, case studies, and practical applications associated with surface waters. It focuses on solving practical problems in rivers, lakes, estuaries, coastal waters, and wetlands. Most of the theories and technical approaches presented within have been implemented in mathematical models and applied to solve practical problems. Throughout the book, case studies are presented to demonstrate how the basic theories and technical approaches are implemented into models, and how these models are applied to solve practical environmental/water resources problems. This new edition of Hydrodynamics and Water Quality: Modeling Rivers, Lakes, and Estuaries has been updated with more than 40% new information. It features several new chapters, including one devoted to shallow water processes in wetlands as well as another focused on extreme value theory and environmental risk analysis. It is also supplemented with a new website that provides files needed for sample applications, such as source codes, executable codes, input files, output files, model manuals, reports, technical notes, and utility programs. This new edition of the book: Includes more than 120 new/updated figures and 450 references Covers state-of-the-art hydrodynamics, sediment transport, toxics fate and transport, and water quality in surface waters Provides essential and updated information on mathematical models Focuses on how to solve practical problems in surface waters—presenting basic theories and technical approaches so that mathematical models can be understood and applied to simulate processes in surface waters Hailed as “a great addition to any university library” by the Journal of the American Water Resources Association (July 2009), Hydrodynamics and Water Quality, Second Edition is an essential reference for practicing engineers, scientists, and water resource managers worldwide.
An Introduction To Hydrodynamics And Water Waves
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Author : Bernard LeMéhauté
language : en
Publisher:
Release Date : 1969
An Introduction To Hydrodynamics And Water Waves written by Bernard LeMéhauté and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Hydrodynamics categories.
An Introduction To Hydrodynamics And Water Waves
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Author : Bernard Le Mehaute
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-18
An Introduction To Hydrodynamics And Water Waves written by Bernard Le Mehaute and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-18 with Science categories.
Water Waves And Ship Hydrodynamics
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Author : A.J. Hermans
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-10-21
Water Waves And Ship Hydrodynamics written by A.J. Hermans and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-21 with Technology & Engineering categories.
In this book an introduction is given to aspects of water waves that play a role in ship hydrodynamics and offshore engineering. At first the equations and linearized boundary conditions are derived describing the non-viscous free surface water waves, with special attention to the combination of steady and non-steady flow fields. Then some simple kinds of free wave solutions are derived, such as plane waves and cylindrical waves. For several situations, steady and unsteady, the source singularity function is derived. These functions play a role in numerical codes used to describe the motion of ships and offshore structures. These codes are mostly based on a boundary integral formulation; therefore we give an introduction to these methods. It is shown how first order ship motions can be determined. In offshore engineering the second order wave drift motions play an important role. An introduction to this phenomenon is given and the effects which have to be taken into account are explained by means of a simple example where we can determine nearly all the aspects analytically. An interesting example that is worked out is the motion of very large floating flexible platforms with finite draft. Finally an introduction to the theory of shallow water non-linear dispersive waves is presented, and shallow water ship hydrodynamics, that plays a role in coastal areas and channels is treated. Here attention is paid to the interaction between passing ships in restricted water. In the appendix a short introduction to some of the mathematical tools is given.
Practical Ship Hydrodynamics
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Author : Volker Bertram
language : en
Publisher: Elsevier
Release Date : 2012
Practical Ship Hydrodynamics written by Volker Bertram and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Science categories.
Practical Ship Hydrodynamics provides a comprehensive overview of hydrodynamic experimental and numerical methods for ship resistance and propulsion, maneuvering, seakeeping and vibration. Beginning with an overview of problems and approaches, including the basics of modeling and full scale testing, expert author Volker Bertram introduces the marine applications of computational fluid dynamics and boundary element methods. Expanded and updated, this new edition includes: Otherwise disparate information on the factors affecting ship hydrodynamics, combined to provide one practical, go-to resource. Full coverage of new developments in computational methods and model testing techniques relating to marine design and development. New chapters on hydrodynamic aspects of ship vibrations and hydrodynamic options for fuel efficiency, and increased coverage of simple design estimates of hydrodynamic quantities such as resistance and wake fraction. With a strong focus on essential background for real-life modeling, this book is an ideal reference for practicing naval architects and graduate students.
Numerical Ship Hydrodynamics
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Author : Lars Larsson
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-09-30
Numerical Ship Hydrodynamics written by Lars Larsson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-30 with Technology & Engineering categories.
This book assesses the state-of-the-art in computational fluid dynamics (CFD) applied to ship hydrodynamics and provides guidelines for the future developments in the field based on the Gothenburg 2010 Workshop. It presents ship hull test cases, experimental data and submitted computational methods, conditions, grids and results. Analysis is made of errors for global (resistance, sinkage and trim and self-propulsion) and local flow (wave elevations and mean velocities and turbulence) variables, including standard deviations for global variables and propeller modeling for self-propulsion. The effects of grid size and turbulence models are evaluated for both global and local flow variables. Detailed analysis is made of turbulence modeling capabilities for capturing local flow physics. Errors are also analyzed for head-wave seakeeping and forward speed diffraction, and calm-water forward speed-roll decay. Resistance submissions are used to evaluate the error and uncertainty by means of a systematic verification and validation (V&V) study along with statistical investigations. Post-workshop experimental and computational studies are conducted and analyzed for evaluation of facility biases and to draw more concrete conclusions regarding the most reliable turbulence model, appropriate numerical methods and grid resolution requirements, respectively.