Download or read book Estimating the In plane Hydrodynamic Loads on a Submarine Hull at Incidence written by Michael Mackay and published by . This book was released on 2006 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamic Loads on Axisymmetric Bodies with Casings in Translation written by Cory Robert Marshall and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study was performed of hydrodynamic forces and moments on submarine hull geometries with casings in steady translation using an enhanced database consisting of experimental and computational results. The objective was to develop a hydrodynamic load estimation method that allows for the rapid simulation of the performance characteristics of underwater vehicles. This is an important step in determining the safe operating envelope of submarines. Accurate potential flow and viscous flow results of the geometries of interest were performed at varying incidence and orientation angles. The simulations were verified by a mesh refinement study and validated against analytical solutions and experimental data. Potential flow was found to be a useful predictor of the effects of geometric asymmetric on the out-of-plane and in-plane force distributions and moments. The viscous simulations showed that casings, and hull asymmetries in general, have significant effects on the separation lines, surface pressure distributions, and wake topologies. These effects caused large variations in the in-plane loads and introduced out-of-plane loads. Increasing the casing width produced the largest changes in the in-plane and out-of-plane loads and wake topology. Previous models were found to be unsuitable for the prediction of the in-plane loads on hulls with casings mainly due to their reliance on slender body theory. An alternative model was developed, which combined potential flow with viscous contributions to obtain the hydrodynamic impulse. The tail plane impulse, and therefore the hydrodynamic force, could be approximated with the first nine Fourier modes of the orientation angle. The hydrodynamic moment predictions were found to be accurate. The model was found to have difficulty in predicting the in-plane moment for small asymmetries such as a narrow casing.
Download or read book Submarine Hydrodynamics written by Martin Renilson and published by Springer. This book was released on 2018-04-20 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers specific aspects of submarine hydrodynamics in a very practical manner. The author reviews basic concepts of ship hydrodynamics and goes on to show how they are applied to submarines, including a look at the use of physical model experiments. The book is intended for professionals working in submarine hydrodynamics, as well as for advanced students in the field. This revised edition includes updated information on empirical methods for predicting the hydrodynamic manoeuvring coefficients, and for predicting the resistance of a submarine. It also includes new material on how to assess propulsors, and includes measures of wake distortion, which has a detrimental influence on propulsor performance. Additional information on safe manoeuvring envelopes is also provided. The wide range of references has been updated to include the latest material in the field.
Download or read book Predicting the Transient Hydrodynamic Loads on Submarine Hulls in Unsteady Maneuvers written by Robert Andrew Doyle and published by . This book was released on 2020 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Submarine maneuvering analysis requires accurate and computationally efficient methods to predict the hydrodynamic loading on a vehicle. During maneuvers in a viscous fluid, this loading will have unsteady contributions from both the added mass of the surrounding fluid, and from motion history effects due to the shedding of vorticity into the wake. Despite this, the majority of models for submarine hydrodynamics assume quasi-steady loading, which neglects the motion history effect. This assumption is primarily made due to our limited understanding of unsteady submarine hydrodynamics. This work presents an analysis of the flow around unappended, maneuvering submarine hulls. This was accomplished using Computational Fluid Dynamics simulations of the flow around the hull. These simulations were validated by comparison against experimental data for an Unmanned Underwater Vehicle of similar geometry to a submarine hull. A range of maneuvers were simulated to explore the effect of unsteady motion. These maneuvers were restricted to planar motions without rotation, and included steady translations, impulsive accelerations, sustained accelerations, and sinusoidally oscillating maneuvers. The hulls studied range in slenderness from 7.5
Download or read book Estimation of Submarine Near bottom Hydrodynamic Loads and Squat electronic Resource written by Mackay, Michael and published by [Dartmouth, N.S.] : Defence Research and Development Canada. This book was released on 2003 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1951 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twenty Second Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 2000-03-02 with total page 1039 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Twenty-Second Symposium on Naval Hydrodynamics was held in Washington, D.C., from August 9-14, 1998. It coincided with the 100th anniversary of the David Taylor Model Basin. This international symposium was organized jointly by the Office of Naval Research (Mechanics and Energy Conversion S&T Division), the National Research Council (Naval Studies Board), and the Naval Surface Warfare Center, Carderock Division (David Taylor Model Basin). This biennial symposium promotes the technical exchange of naval research developments of common interest to all the countries of the world. The forum encourages both formal and informal discussion of the presented papers, and the occasion provides an opportunity for direct communication between international peers.
Download or read book Submarine Design written by Ulrich Gabler and published by Casemate UK Limited. This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twenty First Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 1997-09-11 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamics of High Speed Marine Vehicles written by Odd M. Faltinsen and published by Cambridge University Press. This book was released on 2006-01-09 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1965 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Hydrodynamics 40th anniversary edition written by J. N. Newman and published by MIT Press. This book was released on 2018-01-26 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: A textbook that offers a unified treatment of the applications of hydrodynamics to marine problems. The applications of hydrodynamics to naval architecture and marine engineering expanded dramatically in the 1960s and 1970s. This classic textbook, originally published in 1977, filled the need for a single volume on the applications of hydrodynamics to marine problems. The book is solidly based on fundamentals, but it also guides the student to an understanding of engineering applications through its consideration of realistic configurations. The book takes a balanced approach between theory and empirics, providing the necessary theoretical background for an intelligent evaluation and application of empirical procedures. It also serves as an introduction to more specialized research methods. It unifies the seemingly diverse problems of marine hydrodynamics by examining them not as separate problems but as related applications of the general field of hydrodynamics. The book evolved from a first-year graduate course in MIT's Department of Ocean Engineering. A knowledge of advanced calculus is assumed. Students will find a previous introductory course in fluid dynamics helpful, but the book presents the necessary fundamentals in a self-contained manner. The 40th anniversary of this pioneering book offers a foreword by John Grue. Contents Model Testing • The Motion of a Viscous Fluid • The Motion of an Ideal Fluid • Lifting Surfaces • Waves and Wave Effects • Hydrodynamics of Slender Bodies
Download or read book Design of Ship Hull Structures written by Yasuhisa Okumoto and published by Springer Science & Business Media. This book was released on 2009-03-25 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the four authors show us the condensed experience how to design ship hull structures from a practical viewpoint. In three parts, the book presents the fundamentals, the theory and the application of structural design of hulls. The topics are treated comprehensively with an emphasis on how to achieve reliable and efficient ship structures. The authors have in particular introduced their experiences with the rapid increase of ship sizes as well as the introduction of ship types with a high degree of specialization. The associated early failures of these "new" structures have been analyzed to provide the readers with illustrations why structural design needs to be carried out on several levels in order to ensure that correct loading is applied and that local structural behaviour in properly understood.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1968 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Loads on Ships and Offshore Structures written by O. Faltinsen and published by Cambridge University Press. This book was released on 1993-09-23 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: After introducing the theory of the structural loading on ships and offshore structures based on the motions of wind, waves and currents, this text demonstrates its applications to conventional and non-conventional sea vessels, including extensive exercises and examples.
Download or read book Hydroelasticity of Ships written by Richard Evelyn Donohue Bishop and published by Cambridge University Press. This book was released on 1979-12-27 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
