Download or read book Investigations and Tests to Determine Hydrodynamic Forces and Moments on Ships Moored in a Current written by DANISH HYDRAULIC INST HOERSHOLM. and published by . This book was released on 1986 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work consisted of an extensive series of experiments with ship models that were either fixed or moored in a current in shallow water. The experiments were designed to shed light on apparent contradictions in published data on the hydrodynamic force coefficients and to provide data for two ships moored side by side. The objectives of Phase I, which experiments with a single model, were to test the effect of the Reynolds number, define the effect of the width of the flume, and investigate the potential for ship motions in the shallow water. Phase II consisted of 116 experiments with one vessel and with two vessels side by side, using both fixed models and models restrained by elastic moorings. Phase II objectives were: 1) To determine the horizontal force components as functions of time and as time averages for one vessel and for two vessels in various positions and flow conditions. 2) To discover and define significant details of the flow around the ships(s) with the intent to further develop the understanding of the hydrodynamics of the actual situation. and 3) To investigate limiting conditions, which mark the transitions between negligible vessel motion and instability-type oscillations.
Download or read book Investigations and Tests to Determine Hydrodynamic Forces and Moments on Ships Moored in a Current Final report written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments with 1:50 scale models produced data on the horizontal force and the yawing moment exerted by a steady current on ships moored in shallow water. Data were obtained for one ship with various headings and for two ships arranged side by side in a beam current. The models were restrained by elastic lines simulating real moorings; for a single ship, rigid supports were also used. The experiments included brief investigations of the minimum flume width, turbulence, flow patterns, and flow-induced motions.
Download or read book Investigations and Tests to Determine Hydrodynamic Forces and Moments on Ships Moored in a Current Volume 2 Phase 1 written by DANISH HYDRAULIC INST HOERSHOLM. and published by . This book was released on 1986 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments with 1:50-scale models produced data on the horizontal force and the yawing moment exerted by a steady current on ships moored in shallow water. Data were obtained for one ship with various headings and for two ships arranged side by side in a beam current. The models were restrained by elastic lines simulating real mooring; for a single ship, rigid support were also used. The experiments included brief investigations of the minimum flume width, turbulence, flow patterns, and flow-induced motions. Keywords: ship models; Water currents; Mooring; Loads(force); Motion; Model tests.
Download or read book Investigations and Tests to Determine Hydrodynamic Forces and Moments on Ships Moored in a Current Phase I written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments with 1:50 scale models produced data on the horizontal force and the yawing moment exerted by a steady current on ships moored in shallow water. Data were obtained for one ship with various headings and for two ships arranged side by side in a beam current. The models were restrained by elastic lines simulating real moorings; for a single ship, rigid supports were also used. The experiments included brief investigations of the minimum flume width, turbulence, flow patterns, and flow-induced motions.
Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1987-02 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances In Coastal And Ocean Engineering Vol 2 written by Philip L-f Liu and published by World Scientific. This book was released on 1996-07-03 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains six papers discussing coastal processes, and physical and numerical modeling.In the first paper, Svendsen and Putrevu give an extensive review on the state of understanding of surf-zone hydrodynamics, including subjects such as wave breaking, wave-induced currents, and instability of nearshore currents and infragravity waves. They point out that the most urgent need is to develop an adequate theory for wave breaking and broken waves in the surf zone.One of the methods for studying the complex coastal processes is to perform laboratory experiments. However, physical models are always plagued by scale and laboratory effects, because the coastal process involves many different length and time scales. In the second paper, Kamphuis presents a detailed discussion on the sources and implications of the scale and laboratory effects on physical modeling.The third and the fourth papers are two parts of the discussion on the mathematical modeling of the meso-tidal barrier island coasts. To understand the dynamics of coastal inlet systems, one can either rely on empirical knowledge and construct various forms of empirical and semi-empirical models (Part I), or develop a set of mathematical models based on the physical processes (Part II). Although these models do not provide the details of the dynamics, they give valuable knowledge of the equilibrium-state relationships. de Vriend and Ribberink give a detailed review on two models, Initial Sedimentation/Erosion models and Medium-Term Morphodynamic models. They have also presented many examples of applications.In the fifth paper, Houston gives a brief review on different methods to mitigate beach loss caused by storms or persistent long-term erosion. He then describes, in detail, the method of beach nourishment, which is also called a beach fill. This paper discusses the information that must be collected to design a beach fill and that should be monitored after the completion of the project.The last paper of this volume shifts our attention to the design of offshore structures, such as gravity structures, floating barges and tankers. Chakrabarti discusses the effects of the uniform and shear currents on fixed and floating structures.
Download or read book Advances in Coastal and Ocean Engineering written by Philip L. F. Liu and published by World Scientific. This book was released on 1996 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains six papers discussing coastal processes, and physical and numerical modeling.In the first paper, Svendsen and Putrevu give an extensive review on the state of understanding of surf-zone hydrodynamics, including subjects such as wave breaking, wave-induced currents, and instability of nearshore currents and infragravity waves. They point out that the most urgent need is to develop an adequate theory for wave breaking and broken waves in the surf zone.One of the methods for studying the complex coastal processes is to perform laboratory experiments. However, physical models are always plagued by scale and laboratory effects, because the coastal process involves many different length and time scales. In the second paper, Kamphuis presents a detailed discussion on the sources and implications of the scale and laboratory effects on physical modeling.The third and the fourth papers are two parts of the discussion on the mathematical modeling of the meso-tidal barrier island coasts. To understand the dynamics of coastal inlet systems, one can either rely on empirical knowledge and construct various forms of empirical and semi-empirical models (Part I), or develop a set of mathematical models based on the physical processes (Part II). Although these models do not provide the details of the dynamics, they give valuable knowledge of the equilibrium-state relationships. de Vriend and Ribberink give a detailed review on two models, Initial Sedimentation/Erosion models and Medium-Term Morphodynamic models. They have also presented many examples of applications.In the fifth paper, Houston gives a brief review on different methods to mitigate beach loss caused by storms or persistent long-term erosion. He then describes, in detail, the method of beach nourishment, which is also called a beach fill. This paper discusses the information that must be collected to design a beach fill and that should be monitored after the completion of the project.The last paper of this volume shifts our attention to the design of offshore structures, such as gravity structures, floating barges and tankers. Chakrabarti discusses the effects of the uniform and shear currents on fixed and floating structures.
Download or read book Civil Engineering in the Oceans V written by Robert T. Hudspeth and published by . This book was released on 1992 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Civil Engineering in the Oceans written by and published by . This book was released on 1992 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCEL Abstracts of Technical Documents written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Hydraulic Laboratory Research in the United States written by and published by . This book was released on 1968 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Ocean Space Utilization 3 written by R.B. Abel and published by CRC Press. This book was released on 2002-11-01 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arising out of The Third International Symposium held in New Jersey, this book represents the state-of-the-art in ocean management. From the Baltic to the Caribbean, from the Adriatic to the Atlantic, the problems of ocean management are fully discussed, and proposals made to meet the challenges of the next decade. This book will be of immense inte
Download or read book Proceedings written by and published by . This book was released on 1985 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1987 with total page 964 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 Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium written by and published by . This book was released on 1986 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
