Results 31 to 40 of about 21,854 (248)
Effect of Wavy Leading Edges on Airfoil Trailing-Edge Bluntness Noise
Aerospace, 2023 Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important noise source, which is caused by the vortex shedding at blunt trailing edges.
Yudi Xing +4 more
doaj +1 more source
Numerical Investigation of Installed Jet Noise Sensitivity to Lift and Wing/Engine Positioning [PDF]
, 2018 The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.As the turbofan engines of modern transport aircraft have increasingly larger bypass ratios, by necessity ...
Angelino M. +5 more
core +1 more source
Effect of Wedge-Shaped Deflectors on Flow Fields of Dual-Stream Jets [PDF]
, 2007 The effect of wedge-shaped fan flow deflectors on the mean and turbulent flow-fields of dual-stream jets is investigated. Several wedge-shaped deflector concepts were used to create asymmetry in the plume of a dual-stream jet issuing from a scaled down ...
Papamoschou, Dimitri +2 more
core +1 more source
Aerospace, 2023 The accurate prediction of helicopter rotor aerodynamics and aeroacoustics using Computational Fluid Dynamics (CFD) techniques still remains a challenge, as the over-dissipation of numerical schemes results in a higher diffusive rate of rotor wake and ...
Jinbin Fu, Yi Yuan, Luigi Vigevano
doaj +1 more source
Noise radiated by an open cavity at low Mach number: Effect of the cavity oscillation mode [PDF]
, 2019 The present work focuses on the study of noise generation and radiation of an infinite open three-dimensional cavity at low Mach number with laminar upstream conditions that is of interest to understand noise generation mechanisms in wall-bounded ...
Duben, Alexey +4 more
core +2 more sources
Advances in aeroacoustics research: recent developments and perspectives. [PDF]
Philos Trans A Math Phys Eng Sci, 2019 Aeroacoustics continues to be a subject of active research now nearly 70 years since its genesis in the 1950s at the dawn of the jet age. Although fundamentally a branch of fluid mechanics, aeroacoustics has grown into a discipline of its own right with ...
Karabasov S, Ayton L, Wu X, Afsar M.
europepmc +2 more sources
Aeroacoustics of a ducted fan ingesting an adverse pressure gradient boundary layer
Journal of Fluid MechanicsThe aeroacoustics of a boundary layer ingesting (BLI) ducted fan is investigated experimentally. The study examines a ducted fan immersed in an adverse streamwise pressure gradient turbulent boundary layer developed over a curved wall.
Feroz Ahmed +3 more
semanticscholar +1 more source
Research progress on analysis and test methods of aircraft panel flutter
Hangkong gongcheng jinzhanAircraft panel flutter is a typical aeroelastic stability problem that occurs during supersonic flight，and is characterized by aerodynamic unilateral effects and significant structural and aerodynamic nonlinearity.
HE Chuanyang +4 more
doaj +1 more source
A fourier pseudospectral method for some computational aeroacoustics problems
, 2006 A Fourier pseudospectral time-domain method is applied to wave propagation problems pertinent to computational aeroacoustics. The original algorithm of the Fourier pseudospectral time-domain method works for periodical problems without the interaction ...
Huang, Xun, Zhang, Xin
core +1 more source
Optimization and engineering verification of excitation scheme for aircraft ground vibration test
Hangkong gongcheng jinzhanGround vibration test is an important part of aircraft model development and strength verification. In aircraft ground vibration test，an appropriate excitation scheme can significantly shorten the test's period and improve the accuracy of mode ...
CHEN Haoyu +3 more
doaj +1 more source