Results 1 to 10 of about 8,352,814 (137)
Aeroacoustic Optimization of the Bionic Leading Edge of a Typical Blade for Performance Improvement
Machines, 2021 New, innovative optimization approaches to improve turbomachine performance and reduce turbomachine noise are significant in engineering. In this paper, based on the bionic concept, a wave structure is used to shape the leading edge of the blade.
Haoran Liu +8 more
doaj +3 more sources
Aeroacoustic performance of a seal vibrissa shaped cylinder [PDF]
The Journal of the Acoustical Society of America, 2023 Bio-inspired geometries have many applications in engineering, including in the field of noise control. In this work, the aeroacoustic performance of a seal vibrissa shaped cylinder (SVSC) is investigated and compared to that of a circular cylinder at Re = 37 000.
Tom A. Smith, Guanjiang Chen, Bin Zang
core +9 more sources
Numerical Study on Aerodynamic and Aeroacoustic Performances of Bioinspired Wings
Applied Bionics and Biomechanics, 2023 Noise control has become one of the key issues to be considered in modern aeronautical machinery design. Many efforts have been devoted to noise reduction of airfoils and wings, including traditional flow control methods.
Dichen Li, Chuang Wei
doaj +2 more sources
CFD-driven evaluation of winglet cant angle: Insights into aerodynamic and aeroacoustic performance
Results in EngineeringThe global oil crisis of the 1970s highlighted the need for fuel-efficient aircraft, leading to the adoption of winglets as a key solution for reducing fuel consumption.
S. Amirreza S. Madani +2 more
doaj +3 more sources
Analyzing the Effect and Performance of Lossy Compression on Aeroacoustic Simulation of Gas Injector
Computation, 2017 Computational fluid dynamic simulations involve large state data, leading to performance degradation due to data transfer times, while requiring large disk space. To alleviate the situation, an adaptive lossy compression algorithm has been developed, which is based on regions of interest.
Seyyed Mahdi Najmabadi, Sven Simon
exaly +3 more sources
Aeroacoustic Performance of Rotors in Tandem Configuration [PDF]
AIAA AVIATION 2021 FORUM, 2021 This experimental study presented in this paper aims at understanding the complex aeroacoustics relationship between small-scale rotors in tandem configurations. The effect of the upstream rotor on the aeroacoustics of the multi-rotor system in a counter-rotating configuration was studied.
Celik, Alper +4 more
openaire +4 more sources
Aeroacoustic Performance of Propellers in Turbulent Flow [PDF]
AIAA AVIATION 2021 FORUM, 2021 The aerodynamic noise characteristics of propellers in turbulent flow have been investigated experimentally. In this work, the effect of turbulence interactions on the noise signatures and aerodynamic loading of propellers were investigated using a turbulence-generating passive grid with a solidity ratio of 0.35 and a 3D printed NACA 0012 airfoil wing ...
Jamaluddin, Nur Syafiqah +4 more
openaire +5 more sources
Acoustics, 2023 A new approach to accelerating the evaluation of monopole and dipole source integrals via the fast multipole method (FMM) in the time domain for general three-dimensional (3-D) aeroacoustic problems is presented in this paper.
Yadong Zhang, Yijun Liu
doaj +1 more source
Acta Acustica, 2022 We present the extension of a discontinuous Galerkin framework to zonal direct-hybrid aeroacoustic simulations. This extension provides the ability to simultaneously perform a zonal large eddy simulation (LES), solving the compressible Navier–Stokes ...
Kempf Daniel, Munz Claus-Dieter
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Aero-acoustic performance of a continuous transonic wind-tunnel axial-flow compressor
Xibei Gongye Daxue Xuebao, 2022 A three-stage axial-flow compressor was developed for a continuous transonic wind tunnel. The rotor-stator spacing and the ratio of number of rotor blades to number of stator vanes were properly chosen for the purpose of aero-acoustic noise suppression ...
LONG Bingxiang +4 more
doaj +1 more source