Skewness and shock formation in laboratory-scale supersonic jet data
نویسندگان
چکیده
منابع مشابه
Skewness and shock formation in laboratory-scale supersonic jet data.
Spatial properties of noise statistics near unheated, laboratory-scale supersonic jets yield insights into source characteristics and near-field shock formation. Primary findings are (1) waveforms with positive pressure skewness radiate from the source with a directivity upstream of maximum overall level and (2) skewness of the time derivative of the pressure waveforms increases significantly w...
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Infrared absorption imaging of 2D supersonic jet expansions: Free expansion, cluster formation, and shock wave patterns.
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Broadband, partially correlated noise radiated from supersonic jets has characteristics that scale with nozzle size and flow properties. In particular, the spectral content of jet noise and variation with angle in many cases agree with empirically derived similarity spectra for large and fine-scale components of turbulent mixing noise [Tam et al., AIAA paper 96-1716]. In previous studies, measu...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2013
ISSN: 0001-4966
DOI: 10.1121/1.4807307