Results 1 to 10 of about 404,526 (210)

Flow field analysis and noise characteristics of an automotive cooling fan at different speeds

open access: yesFrontiers 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

Experimental Investigation on the Noise Characteristics of a Squirrel-Cage Fan with Different Blade Lengths

open access: yesEnergies, 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

Reduction of aerodynamic noise of single-inlet centrifugal fan with inclined volute tongue

open access: yesMeasurement + 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

open access: yesВестник 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
doaj   +1 more source

Experimental Study on the Half Flat Tip Serrated Trailing Edge for Stand Fan

open access: yesArchives of Acoustics, 2020
The effectiveness of half flat tip serrations on reducing fan blade trailing edge noise was investigated using experimental methods. The experiments were conducted at an anechoic chamber under different rotating fan speeds.
Hsiao Mun LEE   +3 more
doaj   +1 more source

Validation of the Lattice Boltzmann Method for Simulation of Aerodynamics and Aeroacoustics in a Centrifugal Fan

open access: yesAcoustics, 2020
Due to the fact that legal and market requirements are becoming stricter, fan noise reduction, in addition to energy efficiency, represent a challenge for fan product designers.
Rebecca Schäfer, Martin Böhle
doaj   +1 more source

Research on Noise Reduction of Axial Flow Fan Cover Based on CFD/CAA [PDF]

open access: yesE3S Web of Conferences
Taking an axial fan for an electronic equipment chassis as the research object, combining the theories of Computational Fluid Dynamics (CFD) and Computational Aerodynamic Acoustics (CAA), the steady state and non-stationary analyses are carried out by ...
Chen Kui   +4 more
doaj   +1 more source

Effect of inlet distortion with crosswind on aircraft-engine intake aerodynamic performance

open access: yesNihon Kikai Gakkai ronbunshu, 2022
This paper describes an experimental study on inlet distortion in the flow ingested to an intake of a ducted fan. Recent high bypass ratio engines tend to shorten the nacelle length for better fuel consumption.
Hiroki NARUSE   +7 more
doaj   +1 more source

Aero-acoustical Study of Axial Fan using Computational Fluid Dynamics [PDF]

open access: yesJournal of Agricultural Machinery, 2020
Introduction The issue of noise pollution is one of the concerns of most societies and industries because of their relationship to the environmental comfort of life or work of people are paying attention. The Aero-acoustics not only because of government
B Sabralilou   +3 more
doaj   +1 more source

Acoustic Safety Management at the Locksmith’s Workplace Mechanic-Repairman to Replace the Filter Material in the Technological Process of Obtaining of Apatite Concentrate [PDF]

open access: yesEPJ Web of Conferences, 2021
In this work, measures are being developed to reduce the noise level at the workplace of a mechanic-repairman to replace filter cloth. Based on the results of production control and a thorough assessment of working conditions, the source of noise was ...
Chalovskaya Ekaterina   +4 more
doaj   +1 more source

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