Results 131 to 140 of about 21,854 (248)

Equations of motion for weakly compressible point vortices. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2022
Llewellyn Smith SG, Chu T, Hu Z.
europepmc   +1 more source

Broadband Acoustic Modal Identification by Combined Sensor Array Measurements

open access: yesAcoustics
This paper proposes a synchronous measurement method for broadband acoustic modal identification based on a combined microphone array, which is capable of overcoming the acoustic modal aliasing issue arising from a limited number of microphones.
Kunbo Xu   +5 more
doaj   +1 more source

Acoustic Phased Array Quantification of Quiet Technology Demonstrator 3 Advanced Inlet Liner Noise Component [PDF]

open access: yes
Acoustic phased array flyover noise measurements were acquired as part of the Boeing 737 MAX-7 NASA Advanced Inlet Liner segment of the Quiet Technology Demonstrator 3 (QTD3) flight test program.
Brusniak, Leon   +4 more
core   +1 more source

Co-simulation approach for computational aero-acoustic modeling: Investigating wind-induced noise within two-way radio microphone ports cavity

open access: yesJournal of Mechanical Engineering and Sciences
Wind-induced noise (aeroacoustic) can cause problem with any outdoor microphone applications, notably impacting the performance of telecommunication mobile. One prominent source in two way radios is the microphone port cavity.
Wan Masrurah Hairudin   +3 more
doaj   +1 more source

Transonic blade-vortex interactions noise: A parametric study [PDF]

open access: yes
Transonic Blade-Vortex Interactions (BVI) are simulated numerically and the noise mechanisms are investigated. The 2-D high frequency transonic small disturbance equation is solved numerically (VTRAN2 code). An Alternating Direction Implicit (ADI) scheme
Lyrintzis, A. S., Xue, Y.
core   +1 more source

Prediction of stresses in aircraft panels subjected to acoustic forces [PDF]

open access: yes
Summarized are the progress and accomplishments performed under NASA/Langley Research Center Master Agreement NAS1-17993, Task Assignment No. 22, entitled Prediction of Stresses in Aircraft Panels Subjected to Acoustic Forces, for the period October 1 ...
Mei, Chuh
core   +1 more source

Critical problems of computational aeroacoustics [PDF]

open access: yes
The aeroacoustics of rigid boundaries is discussed. Lighthill gave a formulation of this problem in which he showed that the sources of the acoustic field were quadrupole in nature.
Rogers, Joel C. W.
core   +1 more source

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