A study on the flow and aeroacoustic characteristics of the sirocco fan of OTR (Over The Range)

：The computational flow analysis using LES technique was carried out to investigate the flow characteristics of a sirocco fan under the maximum flowrate condition. The commercial SC/Tetra software was used for this unsteady and three-dimensional numerical analysis. In consequence, because a flow is unstable within the range of about 50% of a housing depth from a bellmouth around the cutoff region, the passing flow through the blade cascade occurred on the X-Y plane is a slow or a reverse with approaching to the housing inlet. Also, the secondary flow shows on the radial plane of a housing, and its vortex center exists within about 33% of a housing depth from a bellmouth except the cutoff region. Moreover, the flow occurring on the exit plane of a sirocco fan shows a complex secondary flow.

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A study on the flow and aeroacoustic characteristics of the sirocco fan of OTR (Over The Range)

Cited by 2 publications

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Determining Factors to Enhanced Oil Mist Filter Efficiency Using CFD Modeling

Three-Dimensional Computational Flow Analysis of a Sirocco Fan for a Package Air Conditioner by LES

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