Journal of Hydronautics

Journal of Hydronautics PDF Author:
Publisher:
ISBN:
Category : Hydrofoil boats
Languages : en
Pages : 260

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Book Description
A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.

Journal of Hydronautics

Journal of Hydronautics PDF Author:
Publisher:
ISBN:
Category : Hydrofoil boats
Languages : en
Pages : 260

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Book Description
A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.

The Shock and Vibration Digest

The Shock and Vibration Digest PDF Author:
Publisher:
ISBN:
Category : Shock (Mechanics)
Languages : en
Pages : 106

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Book Description


Modern Aerodynamic Methods for Direct and Inverse Applications

Modern Aerodynamic Methods for Direct and Inverse Applications PDF Author: Wilson C. Chin
Publisher: John Wiley & Sons
ISBN: 1119580862
Category : Technology & Engineering
Languages : en
Pages : 349

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Book Description
A powerful new monograph from an aerodynamicist reviewing modern conventional aerodynamic approaches, this volume covers aspects of subsonic, transonic and supersonic flow, inverse problems, shear flow analysis, jet engine power addition, engine and airframe integration, and other areas, providing readers with the tools needed to evaluate their own ideas and to implement the newer methods suggested in this book. This new book, by a prolific fluid-dynamicist and mathematician who has published more than twenty research monographs, represents not just another contribution to aerodynamics, but a book that raises serious questions about traditionally accepted approaches and formulations, providing new methods that solve longstanding problems of importance to the industry. While both conventional and newer ideas are discussed, the presentations are readable and geared to advanced undergraduates with exposure to elementary differential equations and introductory aerodynamics principles. Readers are introduced to fundamental algorithms (with Fortran source code) for basic applications, such as subsonic lifting airfoils, transonic supercritical flows utilizing mixed differencing, models for inviscid shear flow aerodynamics, and so on. These are models they can extend to include newer effects developed in the second half of the book. Many of the newer methods have appeared over the years in various journals and are now presented with deeper perspective and integration. This book helps readers approach the literature more critically. Rather than simply understanding an approach, for instance, the powerful "type differencing" behind transonic analysis, or the rationale behind "conservative" formulations, or the use of Euler equation methods for shear flow analysis when they are unnecessary, the author guides and motivates the user to ask why and why not and what if. And often, more powerful methods can be developed using no more than simple mathematical manipulations. For example, Cauchy-Riemann conditions, which are powerful tools in subsonic airfoil theory, can be readily extended to handle compressible flows with shocks, rotational flows, and even three-dimensional wing flowfields, in a variety of applications, to produce powerful formulations that address very difficult problems. This breakthrough volume is certainly a "must have" on every engineer's bookshelf.

Chemical Additives for Improvement of Oil Spill Control, August 1974

Chemical Additives for Improvement of Oil Spill Control, August 1974 PDF Author: United States. Coast Guard
Publisher:
ISBN:
Category : Oil pollution of rivers, harbors, etc
Languages : en
Pages : 204

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Book Description


Asymptotic Modelling of Fluid Flow Phenomena

Asymptotic Modelling of Fluid Flow Phenomena PDF Author: Radyadour Kh. Zeytounian
Publisher: Springer Science & Business Media
ISBN: 0306483866
Category : Science
Languages : en
Pages : 560

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Book Description
for the fluctuations around the means but rather fluctuations, and appearing in the following incompressible system of equations: on any wall; at initial time, and are assumed known. This contribution arose from discussion with J. P. Guiraud on attempts to push forward our last co-signed paper (1986) and the main idea is to put a stochastic structure on fluctuations and to identify the large eddies with a part of the probability space. The Reynolds stresses are derived from a kind of Monte-Carlo process on equations for fluctuations. Those are themselves modelled against a technique, using the Guiraud and Zeytounian (1986). The scheme consists in a set of like equations, considered as random, because they mimic the large eddy fluctuations. The Reynolds stresses are got from stochastic averaging over a family of their solutions. Asymptotics underlies the scheme, but in a rather loose hidden way. We explain this in relation with homogenizati- localization processes (described within the ยง3. 4 ofChapter 3). Ofcourse the mathematical well posedness of the scheme is not known and the numerics would be formidable! Whether this attempt will inspire researchers in the field of highly complex turbulent flows is not foreseeable and we have hope that the idea will prove useful.

Arctic Systems

Arctic Systems PDF Author: P. Amaria
Publisher: Springer Science & Business Media
ISBN: 1468407996
Category : Science
Languages : en
Pages : 950

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Book Description
For the purpose of publication of these Proceedings, the original conference programme has been rearranged to provide a more logical sequence of presentation. The beginning sections give the inaugural speech and the six keynote addresses which were delivered at the opening plenary session. Following these are the working papers, published more or less in the same sequence in which they were presented in the original programme. The order of presentation does not necessarily emphasise the importance of any one aspect of the Arctic Systems over others. The final reports of the six working groups and their conclusions and recommendations are edited in such a manner as to present them in a standardised format for easy comprehension. The editors accept responsibility for any distortion inadvertently introduced in the summarising and editing processes. Later sections of the Proceedings give a background to the Conference organization and deliberations, and an independent critique of the meeting. The directors and those who attended the Conference were conscious of the debt of gratitude owed by them to the Conference chairmen, rapporteurs, authors of working papers, and many individuals for their contributions to the success of the meeting. We wish to thank them and it is a pleasure to record their names in these Proceedings. Inaugural Speaker Dr. J. Rennie Whitehead, Canada Banquet Guest Speaker Honourable Mr. T. Alex Hickman, Canada Keynote Addresses Mr. C. Bornemann, Denmark Dr. A.E. Collin, Canada Dr. R.E. Francois, U.S.A.

Flow-induced Vibrations: an Engineering Guide

Flow-induced Vibrations: an Engineering Guide PDF Author: Eduard Naudascher
Publisher: Routledge
ISBN: 1351447858
Category : Technology & Engineering
Languages : en
Pages : 358

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Book Description
Designed for engineers, this work considers flow-induced vibrations. It covers topics such as body oscillators; fluid loading and response of body oscillators; fluid oscillators; vibrations due to extraneously-induced excitation; and vibrations due to instability-induced excitation.

Nonlinear Waves and Offshore Structures

Nonlinear Waves and Offshore Structures PDF Author: Cheung Hun Kim
Publisher: World Scientific
ISBN: 9810248849
Category : Technology & Engineering
Languages : en
Pages : 539

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Book Description
The responses of offshore structures are significantly affected by steep nonlinear waves, currents and wind, leading to phenomena such as springing and ringing of TLPs, slow drift yaw motion of FPSOs and large oscillations of Spar platforms due to vortex shedding. Research has brought about significant progress in this field over the past few decades and introduced us to increasingly involved concepts and their diverse applicability. Thus, an in-depth understanding of steep nonlinear waves and their effects on the responses of offshore structures is essential for safe and effective designs.This book deals with analyses of nonlinear problems encountered in the design of offshore structures, as well as those that are of immediate practical interest to ocean engineers and designers. It presents conclusions drawn from recent research pertinent to nonlinear waves and their effects on the responses of offshore structures. Theories, observations and analyses of laboratory and field experiments are expounded such that the nonlinear effects can be clearly visualized.

Multiprobe Pressure Testing and Reservoir Characterization

Multiprobe Pressure Testing and Reservoir Characterization PDF Author: Wilson C Chin
Publisher: Elsevier
ISBN: 0443241120
Category : Science
Languages : en
Pages : 439

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Book Description
Multiprobe Pressure Testing and Reservoir Characterization: Pressure Transient, Contamination, Liquid and Gas Pumping Analysis provides much-needed three-dimensional pressure transient simulators for job planning and data interpretation in well logging. Discussions cover fundamental concepts, present fluid sampling, pressure transient and contamination analysis; physical concepts and numerical approaches; and multiprobe model formulations and validations. Other sections cover four-probe algorithms, including conventional, overbalanced, and underbalanced drilling applications. The final section addresses triple-probe algorithms, which includes coupled models for pressure and contamination convergence acceleration. Notably, a further chapter explains how the multiprobe tool's focus on characterizing permeability will promote better use of the reservoir as well as assist with energy storage in underground rock, demonstrating how multiprobe tools also facilitate the energy transition from fossil fuels to sustainable geothermal energy. - Reviews present day needs, tool operations, and analysis methods, along with numerous practical examples and applications - Develops a suite of mathematical models, algorithms, and software from first principles - Explains, in detail, how multiprobe pressure logging is superior to using conventional sensors because direct, accurate reservoir characteristics support energy-efficient geothermal designs - Provides an alternative look at the investigation of unconventional reservoirs, not only in terms of hydrocarbon production, but also with carbon and energy storage in mind

NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 64

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Book Description