Results 101 to 110 of about 21,854 (248)
TechnologiesThis study explores the aeroacoustic influence of leading-edge serrations applied to stator blades subjected to turbulent inflow, which is representative of rotor–stator interaction in turbomachinery. A set of serrated geometries—75 mm span, with up to 9
Andrei-George Totu +5 more
doaj +1 more source
Experimental acoustic study of small horizontal axis wind turbines based on computational fluid dynamics and artificial intelligence approaches [PDF]
مهندسی مکانیک شریفIn modern wind turbine design, two significant challenges arise: achieving optimal aerodynamic performance while minimizing acoustic noise emissions.
M. Sadeghi malekabadi, A.R. Davari
doaj +1 more source
Discontinuous Galerkin Methods for Solving Acoustic Problems [PDF]
, 2015 Parciální diferenciální rovnice hrají důležitou v inženýrských aplikacích. Často je možné tyto rovnice řešit pouze přibližně, tj. numericky. Z toho důvodu vzniklo množství diskretizačních metod pro řešení těchto rovnic.
Nytra, Jan
core
Experimental and numerical study of rotor aeroacoustics [PDF]
, 2017 The work documents recent experiments at the Kazan National Research Technical University named after A.N. Tupolev (Kazan Aviation Institute), related to helicopter acoustics. The objective is to measure nar-field acoustics of rotors in hover and provide
Barakos, George N. +7 more
core +1 more source
Biofilm therapy for chronic wounds
International Wound Journal, Volume 21, Issue 2, February 2024.Abstract Chronic wounds have been a major factor of serious harm to global public health. At present, it is known that almost all chronic wounds contain biofilms, which seriously hinder the healing process. Removal of biofilms can effectively promote the healing of chronic wounds.
Yang Liu +3 more
wiley +1 more source
International Journal of Chemical Engineering, Volume 2024, Issue 1, 2024.This paper examines the aerodynamic noise characteristics of heat exchanger tube bundles, with the objective of exploring the frequency and directional features of noise under nonacoustic resonance conditions, to provide assistance in determining acoustic resonance.
Guofeng Huang +4 more
wiley +1 more source
Effect of rotor stiffness and lift offset on the aeroacoustics of a coaxial rotor in level flight [PDF]
, 2009 The acoustic characteristics of a twin contra-rotating coaxial rotor configuration with significant flapwise stiffness are investigated in steady forward flight.
Brown, Richard +2 more
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Networked Array Recorder (NeAR) Microphones for Field-Deployed Phased Arrays [PDF]
An innovative edge-computing concept known as NeAR (Networked Array Recorder) has been developed to provide enhancements to existing field-deployable microphone phased arrays utilized for aeroacoustic flyover measurements of airframe and propulsive noise
Cull.iton, William G. +1 more
core +1 more source
Aeroacoustics of NACA 0018 Airfoil with a Cavity
AIAA Journal, 2018 This paper reports a detailed numerical study of the aeroacoustics of a NACA 0018 airfoil with a cavity at zero angle of attack, with chord-based Reynolds and freestream Mach numbers at 2×104 and 0.2, in two dimensions.
G. Lam, R. Leung
semanticscholar +1 more source
, 2015 Time-periodic CFD simulations are widely used to investigate turbomachinery components. The triple-plane pressure mode matching method (TPP) developed by Ovenden and Rienstra extracts the acoustic part in such simulations.
Guérin, Sébastien +2 more
core +1 more source