Zobrazeno 1 - 10
of 369
pro vyhledávání: '"Blue Ridge"'
Autor:
Michael M. James, Sally A. McInerny, Blaine M. Harker, Alan T. Wall, Blue Ridge, Kent L. Gee, Richard L. McKinley, Tracianne B. Neilsen
Publikováno v:
21st AIAA/CEAS Aeroacoustics Conference.
Full-scale tactical aircraft noise exhibits multiple radiation lobes not seen in laboratoryscale jets. These lobes have different radiation directions yet appear to have similar, overlapping source regions. Near-field acoustical holography (NAH) sour
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::743d874b5ba757ea4393e82d165622d8
https://doi.org/10.2514/6.2015-2379
https://doi.org/10.2514/6.2015-2379
Autor:
Brent O. Reichman, Blue Ridge, Michael M. James, Michael B. Muhlestein, Tracianne B. Neilsen, Kent L. Gee, Derek C. Thomas, Richard L. McKinley, J. Micah Downing
Publikováno v:
20th AIAA/CEAS Aeroacoustics Conference.
Time-domain metrics are used to investigate the nonlinearity of the sound in the vicinity of the F-35 AA-1. The first measure considered is the average steepening factor (ASF), which we define as the inverse of the wave steepening factor and is a rat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::501ec0ea4b588139113e9dc71926411a
https://doi.org/10.2514/6.2014-3199
https://doi.org/10.2514/6.2014-3199
Autor:
Blue Ridge, J. Micah Downing, Michael B. Muhlestein, Alan T. Wall, Richard L. McKinley, Tracianne B. Neilsen, Kent L. Gee, Michael M. James
Publikováno v:
19th AIAA/CEAS Aeroacoustics Conference.
Crackle, the impulsive quality sometimes present in supersonic jet noise, has traditionally been defined in terms of the pressure waveform skewness. However, recent work has shown that the pressure waveform time derivative is a better quantifier of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac7449317850a7e3d27082d676b37bc7
https://doi.org/10.2514/6.2013-2190
https://doi.org/10.2514/6.2013-2190
Publikováno v:
13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference).
Numerous analyses techniques have been proposed as means of characterizing acoustical nonlinearities in high-thrust engine noise. These include probability distributions for the pressure and the time derivative of the pressure (i.e., the gradient), t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e66fa0d041e1f518c9b0153b3137b7dd
https://doi.org/10.2514/6.2007-3654
https://doi.org/10.2514/6.2007-3654