Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator

Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator

Combustion instabilities can lead to dire and costly consequences to the heat engines if not properly dealt with. Helmholtz resonators are widely used passive acoustic dampers to attenuate acoustic pressure waves arise from instabilities. However, their effectiveness is limited to a narrow frequency...

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Main Author: Koh, You Jia
Other Authors: Lin Rongming
Format: Final Year Project
Language:English
Published: 2017
Subjects:
DRNTU::Engineering::Mechanical engineering
Online Access:http://hdl.handle.net/10356/72064
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Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-72064
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spelling sg-ntu-dr.10356-720642023-03-04T19:29:03Z Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator Koh, You Jia Lin Rongming School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering Combustion instabilities can lead to dire and costly consequences to the heat engines if not properly dealt with. Helmholtz resonators are widely used passive acoustic dampers to attenuate acoustic pressure waves arise from instabilities. However, their effectiveness is limited to a narrow frequency bandwidth. This experiment will look into the performance of the perpendicularly-coupled Helmholtz resonator, investigated with three different configurations under cold flow condition in a wind tunnel with wind speed from 0 m/s to 20 m/s. Bachelor of Engineering (Mechanical Engineering) 2017-05-25T01:38:55Z 2017-05-25T01:38:55Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/72064 en Nanyang Technological University 40 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering
spellingShingle DRNTU::Engineering::Mechanical engineering
Koh, You Jia
Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
description Combustion instabilities can lead to dire and costly consequences to the heat engines if not properly dealt with. Helmholtz resonators are widely used passive acoustic dampers to attenuate acoustic pressure waves arise from instabilities. However, their effectiveness is limited to a narrow frequency bandwidth. This experiment will look into the performance of the perpendicularly-coupled Helmholtz resonator, investigated with three different configurations under cold flow condition in a wind tunnel with wind speed from 0 m/s to 20 m/s.
author2 Lin Rongming
author_facet Lin Rongming
Koh, You Jia
format Final Year Project
author Koh, You Jia
author_sort Koh, You Jia
title Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
title_short Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
title_full Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
title_fullStr Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
title_full_unstemmed Experimental investigation of aeroacoustic damping performance of coupled Helmholtz resonator
title_sort experimental investigation of aeroacoustic damping performance of coupled helmholtz resonator
publishDate 2017
url http://hdl.handle.net/10356/72064
_version_ 1759853023441453056

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