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Is physical activity in polluted environments beneficial or detrimental to osteoporosis and osteoarthritis? A prospective cohort study. [PDF]
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Journal of Fluid Mechanics, 1971
A symposium on aerodynamic noise was held at Loughborough University from 14 to 17 September 1970 under the sponsorship of the Royal Aeronautical Society and the British Acoustical Society. The objective of the meeting was to focus attention on unsolved theoretical and experimental problems which will require attention over the next few years.
M. J. Fisher, M. V. Lowson
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A symposium on aerodynamic noise was held at Loughborough University from 14 to 17 September 1970 under the sponsorship of the Royal Aeronautical Society and the British Acoustical Society. The objective of the meeting was to focus attention on unsolved theoretical and experimental problems which will require attention over the next few years.
M. J. Fisher, M. V. Lowson
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Aerodynamic Noise from Vehicles
The Journal of the Acoustical Society of America, 1973The sources of vehicle noise and their importance relative to aerodynamic noise is given. Using the theory of Lighthill, a summary is given of aerodynamic noise theory and experiment. Following a review of the literature on axial and propeller fan noise and on vehicle cooling fan noise, the present state of the art is described, including present noise
Robert C. Chanaud, Douglas Muster
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COMPUTING AERODYNAMICALLY GENERATED NOISE
Annual Review of Fluid Mechanics, 1997▪ Abstract In contrast to computational aerodynamics, which has advanced to a fairly mature state, computational aeroacoustics (CAA) has only recently emerged as a separate area of study. Following a discussion of the classical field of aeroacoustics as introduced by Lighthill, the paper provides an overview and analysis of the problems associated ...
Valana L. Wells, Rosemary A. Renaut
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Generalized aerodynamic noise equation
The Physics of Fluids, 1975An exact aerodynamic noise equation is formulated for Newtonian fluids. The cause−effect problem is discussed. Finally, the importance of external additions of mass, momentum, and energy is examined.
Chandraker, AL, Munjal, ML
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Aerodynamics and Noise of Coaxial Jets
AIAA Journal, 1977The objective of this investigation was to develop a unified prediction method for estimating the aerodynamic and noise characteristics of jets issuing from nozzles of arbitrary geometric shapes. The method has been developed and demonstrated for dual-flow coaxial jets.
Balsa, Thomas F., Gliebe, Philip R.
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SAE Technical Paper Series, 1990
<div class="htmlview paragraph">As engine, tire, and other automobile noise is reduced and as driving speeds increase, aerodynamic noise sources on ground vehicles are becoming relatively more important. They often dominate at cruise speeds above 60 mph. Aspiration and leak noise are strong sources but generally can be controlled by known methods.
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<div class="htmlview paragraph">As engine, tire, and other automobile noise is reduced and as driving speeds increase, aerodynamic noise sources on ground vehicles are becoming relatively more important. They often dominate at cruise speeds above 60 mph. Aspiration and leak noise are strong sources but generally can be controlled by known methods.
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The Journal of the Royal Aeronautical Society, 1954
The heading aerodynamic noise includes all cases where sound is generated by fluid flows. It includes aeolian harps, edge tones and related phenomena as well as vortex, boundary layer, wake and jet noise. In the strict sense it does not include propeller noise and the direct noise generated by; bodies in motion.
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The heading aerodynamic noise includes all cases where sound is generated by fluid flows. It includes aeolian harps, edge tones and related phenomena as well as vortex, boundary layer, wake and jet noise. In the strict sense it does not include propeller noise and the direct noise generated by; bodies in motion.
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