Numerical prediction on noise from axial flow fan based on modified blade force model

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Abstract

This paper presents a modification to the existing blade force model of Wu et al. [5] to predict noise radiated from a low-pressure axial flow fan. The aerodynamic theory for the fan impeller is introduced and the module analysis is conducted to calculate the flow parameters more accurately, the lift coefficient is modified by taking into account the specific shape of the blade, and an empirical parameter is also replaced by the CFD simulation based on FLUENT software. The numerical prediction on the noise radiated from the fan is performed by using the modified model, and the predicted results are more closely to the experimental results than those before modification.

Original languageEnglish
Title of host publicationFunctional Manufacturing and Mechanical Dynamics II
Pages381-385
Number of pages5
Edition1
DOIs
StatePublished - 2012
Event2nd International Conference on Functional Manufacturing and Mechanical Dynamics - Hangzhou, Zhejiang, China
Duration: 22 Jan 201225 Jan 2012

Publication series

NameApplied Mechanics and Materials
Number1
Volume141
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Functional Manufacturing and Mechanical Dynamics
Country/TerritoryChina
CityHangzhou, Zhejiang
Period22/01/1225/01/12

Keywords

  • Axial flow fan
  • Blade force model
  • Computational fluid dynamics
  • Noise prediction

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