Results 1 to 10 of about 600,035 (167)
Hydrodynamic and hydro acoustic analysis of marine propeller in off design flow conditions. [PDF]
PLoS ONEThis study provides a comprehensive analysis of the INSEAN E-779A four-bladed marine propeller, addressing both hydrodynamic and hydroacoustic aspects.
Ammar Nazeer +7 more
doaj +2 more sources
Aeroacoustic computation of fluid-structure interaction problems with low Mach numbers [PDF]
EPJ Web of Conferences, 2018 This contribution deals with the acoustic simulation of aerodynamical noise generated by a flow over an airfoil or by flow in a flexible channel. Since the considered flow has low Mach number the hybrid approach of acoustic analogies can be applied here ...
Valášek Jan, Sváček Petr
doaj +2 more sources
Comparative study of surface integral methods in aeroacoustic prediction
Frontiers in Physics, 2023 Introduction: Surface integral methods based on the acoustic analogy and Kirchhoff formulation are widely employed in computational aeroacoustics. The computational accuracy is usually highly dependent on the selections of the acoustic prediction method ...
Chen Xu +5 more
doaj +1 more source
Photoacoustics, 2023 Photoacoustic cells play an important role in photoacoustic trace gas analysis, as they can amplify the photoacoustic signal and improve detection limit.
Xiaoli Liu, Hongpeng Wu, Lei Dong
doaj +1 more source
NREL-5MW Wind Turbine Noise Prediction by FWH-LES
International Journal of Turbomachinery, Propulsion and Power, 2023 This paper deals with large onshore wind turbine aeroacoustics. Noise from the NREL 5 MW device is predicted by the permeable-surface Ffowcs Williams–Hawkings equation (FWH-P), starting from the postprocessing of LES data on different acoustic surfaces S.
Claudio Bernardi +5 more
doaj +1 more source
Investigation on Characterization of Typical Characteristic in Compressor Based on Flat Plate Model
Applied Sciences, 2022 The acoustic resonance of aero-engine compressors is very harmful, which can lead to the failure of components such as blades. The mechanism of acoustic resonance is very complicated.
Fengtong Zhao +5 more
doaj +1 more source
Investigation into the Hydrodynamic Noise Characteristics of Electric Ducted Propeller
Journal of Marine Science and Engineering, 2022 Ducted propeller is a kind of special propeller widely used in unmanned underwater vehicles, its flow characteristics and hydrodynamic noise are very important for marine environmental protection and equipment concealment.
Mengfei Chen +5 more
doaj +1 more source
Energy Reports, 2020 Impinging jets are encountered in many ventilation systems, and these can have a major impact on the acoustic environment and energy performance. Self-sustaining tones produced by aero-acoustic coupling can occur in impinging jets when a feedback loop ...
Hassan H. Assoum +5 more
doaj +3 more sources
Derivation of Lighthill’s Eighth Power Law of an Aeroacoustic Quadrupole in Acoustic Spacetime
Acoustics, 2020 Acoustic spacetime is a four-dimensional manifold analogue to the relativistic spacetime with the reference speed of light replaced by the speed of sound.
Drasko Masovic, Ennes Sarradj
doaj +1 more source
AIP Advances, 2023 An innovative numerical prediction method of flow-induced noise is implemented to overcome the defect that the traditional acoustic analogy method cannot reflect the interaction between turbulence vortex and sound.
Si Qiaorui +6 more
doaj +1 more source