Mach 06 To 30 Flows Over Rectangular Cavities
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Author | : Louis G. Kaufman |
Publisher | : |
Total Pages | : 288 |
Release | : 1983 |
Genre | : Aeroacoustics |
ISBN | : |
Internal weapons carriage in high performance aircraft is often adversely affected by the severe aeroacoustic environment produced with the weapons bay doors open. To obtain a better understanding of this fluid dynamic problem, basic static and oscillatory pressure data were obtained for Mach 0.6 to 3.0 flows over shallow rectangular cavities in a generic flat plate model. Cavity length to depth ratios were varied from approximately 5 to 10. Static pressure data characteristic of both open and closed cavity flows were obtained. An improved Rossiter method is presented that satisfactorily predicts the possible frequency modes within the cavity. Highest fluctuating pressure occurs on the aft bulkhead, peaking near Mach 1.5 for the conditions tested. Aeroacoustic levels are substantially reduced by installing suppression fences (spoilers) at subsonic and low supersonic conditions. Acoustic levels generally drop rapidly above Mach 1.5. (Author).
Author | : Maureen B. Tracy |
Publisher | : |
Total Pages | : 40 |
Release | : 1993 |
Genre | : Aerodynamics, Transonic |
ISBN | : |
Author | : William K. Blake |
Publisher | : Academic Press |
Total Pages | : 504 |
Release | : 2017-06-13 |
Genre | : Science |
ISBN | : 0128122897 |
Mechanics of Flow-Induced Sound and Vibration, Volume 1: General Concepts and Elementary Sources, Second Edition, enables readers to fully understand flow-induced vibration and sound, unifying the disciplines of fluid dynamics, structural dynamics, vibration, acoustics, and statistics in order to classify and examine each of the leading sources of vibration and sound induced by various types of fluid motion. Starting with classical theories of aeroacoustics and hydroacoustics, a formalism of integral solutions valid for sources near boundaries is developed and then broadened to address different source types, including jet noise, flow tones, dipole sound from cylinders, and cavitation noise. Step-by-step derivations clearly identify any assumptions made throughout. Each chapter is illustrated with comparisons of leading formulas and measured data. Along with its companion, Mechanics of Flow-Induced Sound and Vibration, Volume 2: Complex Flow-Structure Interactions, the book covers everything an engineer needs to understand flow-induced sound and vibration. This book will be essential reading for postgraduate students, and for engineers and researchers with an interest in aerospace, ships and submarines, offshore structures, construction, and ventilation. Presents every important topic in flow-induced sound and vibration Covers all aspects of the topics addressed, from fundamental theory, to the analytical formulas used in practice Provides the building blocks of computer modeling for flow-induced sound and vibration
Author | : M. B. Tracy |
Publisher | : |
Total Pages | : 36 |
Release | : 1992 |
Genre | : Aerodynamic load |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 704 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 450 |
Release | : 1960 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 642 |
Release | : 1977 |
Genre | : |
ISBN | : |
Author | : United States. National Aeronautics and Space Administration |
Publisher | : |
Total Pages | : 448 |
Release | : 1960 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2004 |
Genre | : Aeronautics |
ISBN | : |
Author | : Joseph J. S. Shang |
Publisher | : John Wiley & Sons |
Total Pages | : 456 |
Release | : 2016-03-22 |
Genre | : Technology & Engineering |
ISBN | : 1119155940 |
Presents numerical algorithms, procedures, and techniques required to solve engineering problems relating to the interactions between electromagnetic fields and fluid flow and interdisciplinary technology for aerodynamics, electromagnetics, chemical-physic kinetics, and plasmadynamics Integrates interlinking computational model and simulation techniques of aerodynamics and electromagnetics Combines classic plasma drift-diffusion theory and electron impact ionization modeling for electromagnetic-aerodynamic interactions Describes models of internal degrees of freedom for vibration relaxation and electron excitations