Wind Tunnel Studies Of The Performance Of Multirotor Configurations
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Author | : Richard C. Dingeldein |
Publisher | : |
Total Pages | : 650 |
Release | : 1954 |
Genre | : Rotors (Helicopters) |
ISBN | : |
The power requirements measured in static thrust and in level forward flight are presented for two helicopter rotor configurations. One is a coaxial rotor arrangement having the rotors spaced approximately 19 percent of the rotor radius; the other is a tandem configuration in which the rotor-shaft spacing is 3 percent greater than the rotor daimater and in which the rotors lie in the same plane. The experimental meausrements are compared with the results of calculations based on existing NACA single-rotor theory.
Author | : United States. National Advisory Committee for Aeronautics |
Publisher | : |
Total Pages | : 1338 |
Release | : 1955 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 818 |
Release | : 1954 |
Genre | : Aeronautics |
ISBN | : |
Author | : Andreas Dillmann |
Publisher | : Springer Nature |
Total Pages | : 867 |
Release | : 2019-09-26 |
Genre | : Technology & Engineering |
ISBN | : 3030252531 |
This book gathers contributions to the 21st biannual symposium of the German Aerospace Aerodynamics Association (STAB) and the German Society for Aeronautics and Astronautics (DGLR). The individual chapters reflect ongoing research conducted by the STAB members in the field of numerical and experimental fluid mechanics and aerodynamics, mainly for (but not limited to) aerospace applications, and cover both nationally and EC-funded projects. Special emphasis is given to collaborative research projects conducted by German scientists and engineers from universities, research-establishments and industries. By addressing a number of cutting-edge applications, together with the relevant physical and mathematics fundamentals, the book provides readers with a comprehensive overview of the current research work in the field. The book’s primary emphasis is on aerodynamic research in aeronautics and astronautics, and in ground transportation and energy as well.
Author | : Gordon J. Leishman |
Publisher | : Cambridge University Press |
Total Pages | : 860 |
Release | : 2006-04-24 |
Genre | : Science |
ISBN | : 9780521858601 |
Written by an internationally recognized teacher and researcher, this book provides a thorough, modern treatment of the aerodynamic principles of helicopters and other rotating-wing vertical lift aircraft such as tilt rotors and autogiros. The text begins with a unique technical history of helicopter flight, and then covers basic methods of rotor aerodynamic analysis, and related issues associated with the performance of the helicopter and its aerodynamic design. It goes on to cover more advanced topics in helicopter aerodynamics, including airfoil flows, unsteady aerodynamics, dynamic stall, and rotor wakes, and rotor-airframe aerodynamic interactions, with final chapters on autogiros and advanced methods of helicopter aerodynamic analysis. Extensively illustrated throughout, each chapter includes a set of homework problems. Advanced undergraduate and graduate students, practising engineers, and researchers will welcome this thoroughly revised and updated text on rotating-wing aerodynamics.
Author | : George E. Sweet |
Publisher | : |
Total Pages | : 28 |
Release | : 1960 |
Genre | : |
ISBN | : |
Author | : United States. National Advisory Committee for Aeronautics |
Publisher | : |
Total Pages | : 356 |
Release | : 1954 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 604 |
Release | : 1964 |
Genre | : |
ISBN | : |
Author | : J. Gordon Leishman |
Publisher | : Cambridge University Press |
Total Pages | : 544 |
Release | : 2002-12-23 |
Genre | : Medical |
ISBN | : 9780521523967 |
Helicopters are highly capable and useful rotating-wing aircraft with roles that encompass a variety of civilian and military applications. Their usefulness lies in their unique ability to take off and land vertically, to hover stationary relative to the ground, and to fly forward, backward, or sideways. These unique flying qualities, however, come at a high cost including complex aerodynamic problems, significant vibrations, high levels of noise, and relatively large power requirements compared to fixed-wing aircraft. This book, written by an internationally recognized expert, provides a thorough, modern treatment of the aerodynamic principles of helicopters and other rotating-wing vertical lift aircraft. Every chapter is extensively illustrated and concludes with a bibliography and homework problems. Advanced undergraduate and graduate students, practising engineers, and researchers will welcome this thorough and up-to-date text on rotating-wing aerodynamics.
Author | : Wayne Johnson |
Publisher | : Courier Corporation |
Total Pages | : 1122 |
Release | : 2012-03-07 |
Genre | : Technology & Engineering |
ISBN | : 0486131823 |
Monumental engineering text covers vertical flight, forward flight, performance, mathematics of rotating systems, rotary wing dynamics and aerodynamics, aeroelasticity, stability and control, stall, noise, and more. 189 illustrations. 1980 edition.