Aeroacoustics of Turbulent Jets: Flow Structure, Noise Sources, and Control
نویسندگان
چکیده
منابع مشابه
Aeroacoustics of Subsonic Turbulent Shear Flows
The paper I s a revlew of sound generatlon In turbulent shear flows. It emphasizes slmultaneous 0 calculatlon of the turbulent flow along wlth the ' h cr) resulting sound generatlon rather than the alternaI tlve acoustlc analogy approach. The first part of w the paper I s concerned wlth solld surface lnteractlon. The second part concentrates on the sound generated by turbulence Interacting wlth...
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The aim of this work is to estimate the sound power generated by a turbulent flow in a duct from the knowledge of mean quantities which can be computed with a K-e turbulence model when only the plane wave can propagate, i.e., when the characteristic frequency of the turbulence is low. It does turn out to be possible for the simplest configuration of a duct free of internal obstruction. The resu...
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The wall-normal gradient of Reynolds shear stress, denoted ∂T+/∂y+, may be thought of as a momentum source or sink term (depending on its sign). This quantity represents a critical driver of the dynamics of wall-turbulence that give rise to the mean velocity distribution. While there have been a number of studies concerning the statistics of ∂T+/∂y+, there remains much to discover regarding the...
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Turbulence in fluids is commonly observed to coexist with relatively large spatial and temporal scale coherent jets. These jets may be steady, vacillate with a definite period, or be irregular. A comprehensive theory for this phenomenon is presented based on the mutual interaction between the coherent jet and the turbulent eddies. When a sufficient number of statistically independent realizatio...
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IVAN MARUSIC, D. D. JOSEPH and KRISHNAN MAHESH Journal of Fluid Mechanics / Volume 570 / January 2007, pp 467 477 DOI: 10.1017/S0022112006003247, Published online: 03 January 2007 Link to this article: http://journals.cambridge.org/abstract_S0022112006003247 How to cite this article: IVAN MARUSIC, D. D. JOSEPH and KRISHNAN MAHESH (2007). Laminar and turbulent comparisons for channel flow and ...
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ژورنال
عنوان ژورنال: JSME International Journal Series B
سال: 2006
ISSN: 1340-8054,1347-5371
DOI: 10.1299/jsmeb.49.1078