NASA Technical Reports Server (NTRS) 19790010517: A wave-envelope of sound propagation in nonuniform circular ducts with compressible mean flowsReportar como inadecuado



 NASA Technical Reports Server (NTRS) 19790010517: A wave-envelope of sound propagation in nonuniform circular ducts with compressible mean flows


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An acoustic theory is developed to determine the sound transmission and attenuation through an infinite, hard-walled or lined circular duct carrying compressible, sheared, mean flows and having a variable cross section. The theory is applicable to large as well as small axial variations, as long as the mean flow does not separate. The technique is

Autor: NASA Technical Reports Server (NTRS)

Fuente: https://archive.org/







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