Results 121 to 130 of about 21,854 (248)
Jet-edge interaction tones [PDF]
, 2017 Motivated by the problem of jet-flap interaction noise, we study the tonal dynamics that occur when a sharp edge is placed in the hydrodynamic nearfield of an isothermal turbulent jet.
Agarwal, Anurag +6 more
core +2 more sources
Dataset of the catamaran floater in towing tank test with fix moment reference point. [PDF]
Data Brief, 2023 Syamsuar S +11 more
europepmc +1 more source
Aeroacoustics of a coaxial rotor in level flight [PDF]
, 2008 The aeroacoustic characteristics of a coaxial system with teetering rotors in level forward °ight are com- pared to those of an equivalent articulated single rotor with the same solidity.
Brown, R.E., Duraisamy, K., Kim, H.W.
core +1 more source
Application of Swept-Sine Excitation for Acoustic Impedance Education [PDF]
The NASA Langley Normal Incidence Tube (NIT) and Grazing Flow Impedance Tube (GFIT) are regularly employed to characterize the frequency response of acoustic liners through the eduction of their specific acoustic impedance.
Howerton, Brian M. +2 more
core +1 more source
Auditory sensory range of male mosquitoes for the detection of female flight sound. [PDF]
J R Soc Interface, 2022 Nakata T +4 more
europepmc +1 more source
Effect of boattail geometry on the acoustics of parallel baffles in ducts [PDF]
Sound attenuation and total pressure drop of parallel duct baffles incorporating certain boattail geometries were measured in the NASA Ames Research Center 7- by 10-Foot Wind Tunnel.
Dudley, M. R. +2 more
core +1 more source
Open photoacoustic cell for concentration measurements in rapidly flowing gas. [PDF]
Photoacoustics, 2023 Fekete J +7 more
europepmc +1 more source
Aeroacoustics of a porous plug supersonic jet noise suppressor [PDF]
The aeroacoustics of a porous plug supersonic jet noise suppressor was investigated. The needed modifications of the existing multistream coaxial jet rig; the compressed air facility and pressure controls; the design, the fabrication, and the ...
Das, I. S. +2 more
core +1 more source
Entropy and Information Theory in Acoustics. [PDF]
Entropy (Basel), 2022 Li Y.
europepmc +1 more source
Finite element simulation of noise radiation through shear layers
, 2012 Predicting sound propagation through the jet exhaust of an aero-engine presents the specific difficulty of representing the refraction effect of the mean flow shear.
Beriot, Hadrien +2 more
core +1 more source