Results 1 to 10 of about 5,629,785 (335)
Energies, 2022 To improve the aerodynamic performance and reduce the noise of multi-blade centrifugal fans used in air conditioners, a bionic groove structure was introduced into the blade tip design, inspired by the drag reduction characteristics of mantis shrimp.
Ziqian Xu +4 more
doaj +2 more sources
Main fan noise mitigation technologies in turbofan engines
Aviation, 2014 Aircraft noise and emissions have been of concern since the beginning of commercial aviation. The continuing growth in air traffic and increasing public awareness have made environmental considerations one of the most critical aspects of commercial ...
Fathollah Ommi, Mohammadreza Azimi
doaj +2 more sources
Flow field analysis and noise characteristics of an automotive cooling fan at different speeds
Frontiers in Energy Research, 2023 As the core component of the automotive air conditioning cooling system, the automotive cooling fan directly affects the cooling performance of the entire system. Therefore, it is necessary to study the flow field and noise of the automotive cooling fan.
Kai Ren +4 more
doaj +1 more source
Effect of Sweep on Axial Fan Noise Sources Using the Lattice Boltzmann Method
International Journal of Turbomachinery, Propulsion and Power, 2022 The effect of blade sweep has been studied numerically with the Lattice Boltzmann Method on a family of low-speed free-vortex axial fans with sweeps of ±45°.
D. Ghodake +3 more
semanticscholar +1 more source
Design of an in-duct micro-perforated panel absorber for axial fan noise attenuation
Acta Acustica, 2021 The reduction of fan noise in ducts is a challenging task for acoustic engineers. Usually, the confined space where an absorber can be integrated is small.
Sebastian Floss +3 more
semanticscholar +1 more source
Energies, 2022 Squirrel-cage fans are widely applied in air conditioning systems, and their aerodynamic noise mainly related to blade length. The aerodynamic performance and noise spectrum of squirrel-cage fans are synchronously measured in an anechoic wind tunnel. The
Zhehong Li +3 more
doaj +1 more source
Sound quality assessment of a medium-range aircraft with enhanced fan-noise shielding design
CEAS Aeronautical Journal, 2021 The investigation of technologies that can improve the sustainability of the air transport system requires not only the development of alternative fuel concepts and novel vehicle technologies but also the definition of appropriate assessment strategies ...
Gil Felix Greco +3 more
semanticscholar +1 more source
Reduction of aerodynamic noise of single-inlet centrifugal fan with inclined volute tongue
Measurement + Control, 2020 The effect of inclined volute tongue on the aerodynamic noise and performance of a centrifugal fan was investigated by experimental test in this article.
Wenyue Hao +7 more
doaj +1 more source
The influence of booster design features on aicraft engine fan tonal noise
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 Fan and booster tonal noise makes significant contribution to the overall noise level of an aero engine, particularly in subsonic modes of operation.
Yu. D. Khaletskiy +2 more
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