Reduction of Ceiling Fan Noise by Serrated Trailing Edge-Reference-Cited by-同舟云学术

Reduction of Ceiling Fan Noise by Serrated Trailing Edge

Published:2018-09 Issue:03 Volume:17 Page:1850026
ISSN:0219-4775
Container-title:Fluctuation and Noise Letters
language:en
Short-container-title:Fluct. Noise Lett.

Author:

Lee Hsiao Mun¹²^ORCID,Lim Kian Meng²,Lee Heow Pueh²

Affiliation:

1. Center for Research on Leading Technology of Special Equipment, School of Mechanical and Electric Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou 510006, P. R. China

2. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore

Abstract

Six ceiling fan blade models with different types of trailing edge serrations were created and were simulated using commercial software in the present studies in order to investigate the effectiveness of various trailing edge serrations in reducing fan blade trailing edge noise. They were original, flat tip, serrated, rectangular, half flat tip and half rectangular half flat tip fan blades. The simulation results showed that the half flat tip fan blade had the best acoustical performance where it could obtain an overall noise reduction of 13.9[Formula: see text]dBA followed by rectangular fan blade with 10.9[Formula: see text]dBA, flat tip fan blade with 9.2[Formula: see text]dBA, half rectangular half flat tip fan blade with 5.0[Formula: see text]dBA and serrated fan blade with 4.7[Formula: see text]dBA. The effectiveness of TE serrations in reducing trailing edge noise was also proven through experimental testing in an anechoic chamber in the present studies.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,General Mathematics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219477518500268

Reference19 articles.

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