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Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 492
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Book Description
Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 492
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Book Description
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 484
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Book Description
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: H.M. Atassi
Publisher: Springer Science & Business Media
ISBN: 1461393418
Category : Science
Languages : en
Pages : 876
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Book Description
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.
Author: ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (France)
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
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Book Description
Particle contents: Design Concept and Performance Prediction Technique for Potential Flows around Advanced Propellers; Propeller Aerodynamic Prediction Methods; Aerodynamics of Wide-chord Propellers in Non-axisymmetric Flow; A Unified Approach for the Aerodynamics and Acoustics of Propellers in Forward Motion; Theoretical Analysis of Linearized Acoustics and Aerodynamics of Advanced Supersonic Propellers; A General Theory of Arbitrary Motion Aerodynamics Using an Aeroacoustic Approach; Recent NASA Propeller Research; An Asymptotic Theory for the Inference of Large Aspect Ratio Swept Wings and Multiple Propeller Slipstreams; Aeroacoustic Wind Tunnel Measurements on Propeller Noise; An Investigation of In-flight Near-field Propeller Noise Generation and Transmission; Propeller Aircraft Cabin Vibration and Noise-excitation Sources and Paths; Application of Active Noise Control to Model Propeller Noise.
Author: Harvey H. Hubbard
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 620
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Author: Philippe Poisson-Quinton
Publisher:
ISBN: 9789283515081
Category : Aerodynamics
Languages : en
Pages : 37
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Book Description
Contents: Propeller Analysis and Design; Propeller Testing; Propeller/Airframe Interference and Integration; Propeller Acousitcs; and Prospect for New Turbo-Prop Systems. Keywords: aircraft propeller noise.
Author: Paul T. Soderman
Publisher:
ISBN:
Category : Propellers, Aerial
Languages : en
Pages : 72
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Author: N. Kroll
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
In the DFVLR Institute for Design Aerodynamics, linear and nonlinear analysis methods for flow fields around propellers have been developed. Two singularity methods are presented. In the first, a doublet point scheme has been formulated for the calculation of steady and unsteady loads on surfaces having helical motion in an incompressible medium, e.g. propellers in uniform and nonuniform inflows and counter rotating propellers. The second is a surface panel method for computations of steady subsonic flows around propeller blades moving in a compressible medium. The method has been extended for the prediction of acoustic quantities. In order to predict the characteristics of transonic propeller flow fields, the DFVLR Euler code for solving the 3-D Euler equations has been extended. The equations are formulated in a rotating cartesian reference frame. The solution procedure is based on a finite volume method using an explicit Runge-Kutta time stepping scheme. Numerical results for various propeller geometries are presented and compared with experimental data.
Author: NATO. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT.
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Book Description
