Download or read book A Ship Advancing in a Stratified Fluid written by Mehdi Esmaeilpour and published by . This book was released on 2017 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational fluid dynamics (CFD) methodology is presented to predict density stratified flows in the near-field of ships and submarines. The density is solved using a higher-order transport equation coupled with mass and momentum conservation. Turbulence is implemented with a k-ε/k-ω based Delayed Detached Eddy Simulation (DDES) approach, enabling explicit solution of larger energy-containing vortices in the wake. Validation tests are performed for a two-dimensional square cavity and the three-dimensional stratified flow past a sphere, showing good agreement with available data. The near-field flow of the self-propelled Research Vessel Athena advancing in a stably stratified fluid is studied, as well as the operation in stratified flow of the notional submarine Joubert BB2 also in self-propelled condition. The resulting density, velocity, pressure and turbulent quantities at the exit plane of the near-field computation contain a description of the relevant scales of the flow and can be used to compute the far-field stratified flow, including internal waves. The generation of internal waves is shown in the case of the submarine for two different conditions, one with the pycnocline located at the propeller centerline, and the second with the pycnocline located slightly below the submarine, concluding that distance to the pycnocline strongly affects the internal wave generation due to the presence of the vessel. It is also shown that, as in the case of surface waves, the generation of internal waves requires energy that results in an increase in resistance. For the case of the surface ship the near field wakes are mostly affected by the separation at the wet transom and propeller mixing. However, in the case of the underwater vessel, the disturbance of the background density profile by the presence of the submarine affects the near-field wakes.

Download or read book Near field Flow of Submarines and Ships Advancing in a Stable Stratified Fluid written by and published by . This book was released on 2016 with total page 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 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 Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Fluids Maneuverability and Ocean Platforms Ocean Waves and Ship generated Waves and Wave Resistance written by Ralph D. Cooper and published by . This book was released on 1968 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report Of The British Association For The Advancement Of Science written by and published by . This book was released on 1870 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Methods for Fluid Dynamics written by Joel H. Ferziger and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its third revised and extended edition the book offers an overview of the techniques used to solve problems in fluid mechanics on computers. The authors describe in detail the most often used techniques. Included are advanced techniques in computational fluid dynamics, such as direct and large-eddy simulation of turbulence. Moreover, a new section deals with grid quality and an extended description of discretization methods has also been included. Common roots and basic principles for many apparently different methods are explained. The book also contains a great deal of practical advice for code developers and users.

Download or read book Report of the Meeting of the British Association for the Advancement of Science written by British Association for the Advancement of Science and published by . This book was released on 1870 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ship Hydrostatics and Stability written by Adrian Biran and published by Elsevier. This book was released on 2024-07-29 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ship Hydrostatics and Stability 3e is a complete guide to understanding ship hydrostatics in ship design and ship performance, taking you from first principles through basic and applied theory to contemporary mathematical techniques for hydrostatic modeling and analysis. Real life examples of the practical application of hydrostatics are used to explain the theory and calculations using MATLAB and Excel.The new edition of this trusted resource covers new naval architecture regulations such as Second Generation Intact Stability Code (SGISC), and new case studies based on recent capsize and ship stability disasters. Extensive reference to computational techniques is made throughout and downloadable MATLAB files accompany the book to support your own hydrostatic and stability calculations.The book also includes tables of notations and technical terms, and indexes in French, German, Italian, and Spanish. - Definitions, formulations, and methods are provided throughout to facilitate novices. - Rigorous mathematical proofs of the most important theorems are provided. - Examples based on data from real ships are used throughout the book to explain concepts and procedures.

Download or read book Oceanic Hydraulics written by Roger L. Hughes and published by Springer. This book was released on 1990-08 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 133 (1999), No. 4

Download or read book Papers written by William Froude and published by . This book was released on 1955 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Topographic Effects in Stratified Flows written by Peter G. Baines and published by Cambridge University Press. This book was released on 2022-01-27 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the nature of density-stratified flow over and around topography, including applications to the flow of the atmosphere and ocean.

Download or read book Report of the Meeting of the British Association for the Advancement of Science written by British Association for the Advancement of Science. Meeting and published by . This book was released on 1885 with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Modelling of Free and Moving Boundary Problems II written by Luiz C. Wrobel and published by . This book was released on 1993 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Applied Mechanics written by and published by Elsevier. This book was released on 2000-10-24 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly acclaimed series provides survey articles on the present state and future direction of research in important branches of applied solid and fluid mechanics.Mechanics is defined as a branch of physics that focuses on motion and on the reaction of physical systems to internal and external forces.

Download or read book Motions and Hydrodynamic Loads of a Ship Advancing in Oblique Waves written by Cheung Hun Kim and published by . This book was released on 1980 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: