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12 - Aeronautical, Mechanical, Chemical and Manufacturing Engineering

Brunel University London

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Output 34 of 255 in the submission

Article title

An experimental study of airfoil instability tonal noise with trailing edge serrations

Type

D - Journal article

DOI

10.1016/j.jsv.2013.06.033

Title of journal

Journal of Sound and Vibration

Article number

Volume number

332

Issue number

First page of article

6335

ISSN of journal

0022460X

Year of publication

2013

URL

http://www.sciencedirect.com/science/article/pii/S0022460X13005956/pdfft?md5=bb2232501c315aaff12907ec7333f596&pid=1-s2.0-S0022460X13005956-main.pdf

Number of additional authors

Additional information

This paper represents a comprehensive experimental study of the physical mechanisms that play a role in the aerofoil trailing edge tonal noise generation in some fan-based applications that operate at moderate Reynolds numbers. An improved understanding of the noise mechanisms enabled the author to successfully achieve a 20dB tonal noise reduction by the trailing edge serrations (a nature-inspired technology). The author was invited to present the results at the LG Electronics Seoul’s research laboratory in 2012. The simplicity of the noise control technique developed in this study is expected to attract interests from other fan companies.

Interdisciplinary

Cross-referral requested

Research group

None

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract