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Author: Theodore Theodorsen Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 184
Book Description
Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.
Author: Theodore Theodorsen Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 184
Book Description
Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.
Author: John Carlton Publisher: Butterworth-Heinemann ISBN: 0080971237 Category : Technology & Engineering Languages : en Pages : 539
Book Description
The early development of the screw propeller. Propeller geometry. The propeller environment. The ship wake field, propeller performance characteristics.
Author: Hans O S Küffner-McCauley Publisher: ISBN: Category : Languages : en Pages : 326
Book Description
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
Author: Frank Hitchens Publisher: Andrews UK Limited ISBN: 1785381253 Category : Transportation Languages : en Pages : 203
Book Description
Classical aerodynamics is a compulsory study subject for pilots at all levels of experience. Propeller Aerodynamics is a subset of this fascinating subject. Propellers have their unique aerodynamic terminology, forces and handling requirements, knowledge of which all pilots must be aware of to safely handle the aircraft they are flying. Incorrect propeller handling can cause damage to the aircraft and reduce performance efficiency. Most aerodynamic text books only give a brief view of propeller aerodynamics; however this book Propeller Aerodynamics delves more deeply into this subject. The book covers the history and operation of aircraft propellers, prop pitch, thrust, efficiency, aircraft stability, prop forces, constant-speed units and more. This is all essential reading for the pilot progressing to more advanced high-performance aircraft.
Author: H. H. Hurt Jr. Publisher: www.bnpublishing.com ISBN: 9781607965084 Category : Aerodynamics Languages : en Pages : 436
Book Description
Aerodynamics for Naval Aviators is the traditional text for Navy pilots. Also used by the U.S. Air Force, it remains the definitive work on applied aerodynamics for pilots. It effectively communicates the intricacies of aerodynamics in an accessible manner, and includes charts, illustrations, and diagrams to aid in understanding. This text is reader-friendly and great for any serious beginner as well as any experienced pilot, and is the definitive source on aerodynamic and engineering theory as they apply to flight operations.
Author: Odd M. Faltinsen Publisher: Cambridge University Press ISBN: 1139447939 Category : Technology & Engineering Languages : en Pages : 490
Book Description
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.
Author: Liang Yun Publisher: Springer ISBN: 1493978918 Category : Technology & Engineering Languages : en Pages : 783
Book Description
High speed catamaran and multihull high speed marine vessel have become very popular in the last two decades. The catamaran has become the vessel of choice for the majority of high speed ferry operators worldwide. There have been significant advances in structural materials, and structural design has been combined with higher power density and fuel efficient engines to deliver ferries of increasing size. The multihull has proven itself to be a suitable configuration for active power projection across oceans as well as for coastal patrol and protection, operating at high speedd for insertion or retrieval with a low energy capability. At present there is no easily accessible material covering the combination of hydrodynamics, aerodynamics, and design issues including structures, powering and propulsion for these vehicles. Coverage in High Speed Catamarans and Multihulls includes an introduction to the history, evolution, and development of catamarans, followed by a theoretical calculation of wave resistance in shallow and deep water, as well as the drag components of the multihull. A discussion of vessel concept design describing design characteristics, empirical regression for determination of principal dimensions in preliminary design, general arrangement, and methods is also included. The book concludes with a discussion of experimental future vehicles currently in development including the small waterplane twin hull vessels, wave piercing catamarans, planing catamarans, tunnel planing catamarans and other multihull vessels.
Author: Dave Gerr Publisher: International Marine/Ragged Mountain Press ISBN: 9780071839587 Category : Sports & Recreation Languages : en Pages : 224
Book Description
The Complete Reference for Choosing, Installing, and Understanding Boat Propellers—a first of its kind reference—fully revised and updated Propeller Handbook, Second Edition demystifies the operation, behavior and selection of propellers and provides practical and detailed advice in readable, easy-to-understand language. The book will enable readers to size and select the correct propeller for their boat or for boats they may be working on. Solutions to propeller problems, installation considerations, propeller shafting, number of blades and blade area, boat speed and powering calculations and considerations, and much more are discussed in detail. In the twenty-seven years since the publication of the first edition, Propeller Handbook, has become a cornerstone resource that marine-industry professionals rely on. All material from the previous edition is completely rewritten to reflect the author’s additional 27-years of experience in boat design and propeller selection since the first edition was introduced. Significant changes in the emphasis placed on factors such as blade area and propeller and engine matching, underlie the revised propeller-selection approach. Plus, the entire book has been updated to fully include metric and English units.
Author: Theodore Theodorsen
Author: Theodore Theodorsen
Author: John Carlton
Author: Hans O S Küffner-McCauley
Author: Claus F. L. Kruppa
Author: John Vernon Becker
Author: Frank Hitchens
Author: H. H. Hurt Jr.
Author: Odd M. Faltinsen
Author: Liang Yun
Author: Dave Gerr