๐”– Bobbio Scriptorium
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The sound field structure in the subsurface channel

โœ Scribed by L. V. Shvachko


Book ID
110215968
Publisher
SP MAIK Nauka/Interperiodica
Year
2009
Tongue
English
Weight
296 KB
Volume
55
Category
Article
ISSN
1063-7710

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THE STRUCTURE OF WOBBLING SOUND FIELDS
โœ M. CARLEY ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 411 KB

The acoustic "eld of rotating sources such as aeroplane propellers and helicopter rotors is known to develop a marked asymmetry when the incoming #ow is not parallel to the axis of rotation. This e!ect has been modelled using a "eld composed of &&wobbling modes'', azimuthal modes whose amplitude is