Rotor/Wing Interactions in Hover

Rotor/Wing Interactions in Hover PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 96

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Rotor/Wing Interactions in Hover

Rotor/Wing Interactions in Hover PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 96

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Book Description


Rotor/Wing Interactions in Hover

Rotor/Wing Interactions in Hover PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720712299
Category :
Languages : en
Pages : 94

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Book Description
Hover predictions of tiltrotor aircraft are hampered by the lack of accurate and computationally efficient models for rotor/wing interactional aerodynamics. This paper summarizes the development of an approximate, potential flow solution for the rotor-on-rotor and wing-on-rotor interactions. This analysis is based on actuator disk and vortex theory and the method of images. The analysis is applicable for out-of-ground-effect predictions. The analysis is particularly suited for aircraft preliminary design studies. Flow field predictions from this simple analytical model are validated against experimental data from previous studies. The paper concludes with an analytical assessment of the influence of rotor-on-rotor and wing-on-rotor interactions. This assessment examines the effect of rotor-to-wing offset distance, wing sweep, wing span, and flaperon incidence angle on tiltrotor inflow and performance.Young, Larry A. and Derby, Michael R.Ames Research CenterFLOW DISTRIBUTION; MATHEMATICAL MODELS; ROTOR AERODYNAMICS; TILT ROTOR AIRCRAFT; INTERACTIONAL AERODYNAMICS; HOVERING; AIRCRAFT DESIGN; SWEPT WINGS; POTENTIAL FLOW; VORTICES; WING SPAN; FLAPERONS

Lecture Notes in Rotorcraft Engineering

Lecture Notes in Rotorcraft Engineering PDF Author: Antonio Filippone
Publisher: Springer Nature
ISBN: 3031124375
Category : Technology & Engineering
Languages : en
Pages : 255

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Book Description
This textbook is a multi-disciplinary compendium that includes several aspects of rotorcraft technology. It introduces the reader to the aerodynamic aspects of rotary wings and presents experimental techniques for aerodynamics. The chapters also cover rotorcraft engines and rotorcraft steady-state flight performance and stability. It explores several aspects of the tiltrotor configuration and lists challenges in their design, modelling and simulation. The reader will also find an introductory overview of flight control systems for rotorcraft, as well as the conceptual and preliminary design concepts for a conventional helicopter. This textbook contains video recordings of computer simulations that can be used alongside the main text.

Flow Control

Flow Control PDF Author: Thomas C. Corke
Publisher: Cambridge University Press
ISBN: 110896253X
Category : Technology & Engineering
Languages : en
Pages : 482

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Book Description
This book provides a comprehensive treatment of passive and active flow control in fluid dynamics, with an emphasis on utilizing fluid instabilities for enhancing control performance. Examples are given from a wide range of technologically important flow fields occurring in aerospace applications, from low-subsonic to hypersonic Mach numbers. This essential book can be used for both research and teaching on the topics of fluid instabilities, fluid measurement and flow actuator techniques, and problem sets are provided at the end of each chapter to reinforce key concepts and further extend readers' understanding of the field. The solutions manual is available as a online resource for instructors. The text is well suited for both graduate students in fluid dynamics and for practising engineers in the aerodynamics design field.

Principles of Helicopter Aerodynamics with CD Extra

Principles of Helicopter Aerodynamics with CD Extra PDF Author: Gordon J. Leishman
Publisher: Cambridge University Press
ISBN: 9780521858601
Category : Science
Languages : en
Pages : 860

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Book Description
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.

Rotary-Wing Aerodynamics

Rotary-Wing Aerodynamics PDF Author: W. Z. Stepniewski
Publisher: Courier Corporation
ISBN: 0486318516
Category : Technology & Engineering
Languages : en
Pages : 640

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Book Description
DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div

Navier-Stokes Flowfield Computation of Wing/rotor Interaction for a Tilt Rotor Aircraft in Hover

Navier-Stokes Flowfield Computation of Wing/rotor Interaction for a Tilt Rotor Aircraft in Hover PDF Author: Ian G. Fejtek
Publisher:
ISBN:
Category :
Languages : en
Pages : 162

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440

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Monthly Catalogue, United States Public Documents

Monthly Catalogue, United States Public Documents PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1702

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