Aeroacoustics characterization methodology applicable to turbocharger compressor

Turbochargers have become an important part of modern high efficient engines, and soon will be a standard component. Almost all automotive and industrial diesel engines and most of the high performance SI engines are equipped with turbocharger. Even though past few decades have seen continuous perfo...

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Main Authors: Paramasivam, Kishokanna, Mohamed, Danial, Romagnoli, Alesssandro, Rajoo, Sritha, Mohd. Noor, Alias
Format: Article
Published: Asian Research Publishing Network 2015
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Online Access:http://eprints.utm.my/id/eprint/57711/
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Institution: Universiti Teknologi Malaysia
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spelling my.utm.577112017-02-01T01:32:17Z http://eprints.utm.my/id/eprint/57711/ Aeroacoustics characterization methodology applicable to turbocharger compressor Paramasivam, Kishokanna Mohamed, Danial Romagnoli, Alesssandro Rajoo, Sritha Mohd. Noor, Alias TJ Mechanical engineering and machinery Turbochargers have become an important part of modern high efficient engines, and soon will be a standard component. Almost all automotive and industrial diesel engines and most of the high performance SI engines are equipped with turbocharger. Even though past few decades have seen continuous performance improvement, there is still lack of wide range research on acoustical behavior of turbochargers. A turbocharger consists of compressor which is driven by an exhaust turbine. Turbocharger produces high frequency aerodynamic sound due to the high speed rotating blade. The main aerodynamic noise generating mechanisms in turbo-compressors is tonal noise at blade passing frequencies, buzz-saw noise and blade tip clearance noise. The focus will be on tonal noise which occurs due to pressure fluctuation that is related to the rotating speed. The tonal noise is periodic in time where it consists of the blade passing frequency (BPF) and its harmonics. Higher rotating speed will result in a more prominent blade passing noise and its harmonics. The aim of this paper is to offer a methodology on characterizing the tonal noise of turbocharger based on investigation of high speed turbo machinery, which also has similar acoustical behavior. This study will include results from commercial computational fluid dynamics (CFD) code and experimental with the sound pressure level distribution Asian Research Publishing Network 2015 Article PeerReviewed Paramasivam, Kishokanna and Mohamed, Danial and Romagnoli, Alesssandro and Rajoo, Sritha and Mohd. Noor, Alias (2015) Aeroacoustics characterization methodology applicable to turbocharger compressor. ARPN Journal of Engineering and Applied Sciences, 10 (17). pp. 7773-7779. ISSN 1819-1894
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Paramasivam, Kishokanna
Mohamed, Danial
Romagnoli, Alesssandro
Rajoo, Sritha
Mohd. Noor, Alias
Aeroacoustics characterization methodology applicable to turbocharger compressor
description Turbochargers have become an important part of modern high efficient engines, and soon will be a standard component. Almost all automotive and industrial diesel engines and most of the high performance SI engines are equipped with turbocharger. Even though past few decades have seen continuous performance improvement, there is still lack of wide range research on acoustical behavior of turbochargers. A turbocharger consists of compressor which is driven by an exhaust turbine. Turbocharger produces high frequency aerodynamic sound due to the high speed rotating blade. The main aerodynamic noise generating mechanisms in turbo-compressors is tonal noise at blade passing frequencies, buzz-saw noise and blade tip clearance noise. The focus will be on tonal noise which occurs due to pressure fluctuation that is related to the rotating speed. The tonal noise is periodic in time where it consists of the blade passing frequency (BPF) and its harmonics. Higher rotating speed will result in a more prominent blade passing noise and its harmonics. The aim of this paper is to offer a methodology on characterizing the tonal noise of turbocharger based on investigation of high speed turbo machinery, which also has similar acoustical behavior. This study will include results from commercial computational fluid dynamics (CFD) code and experimental with the sound pressure level distribution
format Article
author Paramasivam, Kishokanna
Mohamed, Danial
Romagnoli, Alesssandro
Rajoo, Sritha
Mohd. Noor, Alias
author_facet Paramasivam, Kishokanna
Mohamed, Danial
Romagnoli, Alesssandro
Rajoo, Sritha
Mohd. Noor, Alias
author_sort Paramasivam, Kishokanna
title Aeroacoustics characterization methodology applicable to turbocharger compressor
title_short Aeroacoustics characterization methodology applicable to turbocharger compressor
title_full Aeroacoustics characterization methodology applicable to turbocharger compressor
title_fullStr Aeroacoustics characterization methodology applicable to turbocharger compressor
title_full_unstemmed Aeroacoustics characterization methodology applicable to turbocharger compressor
title_sort aeroacoustics characterization methodology applicable to turbocharger compressor
publisher Asian Research Publishing Network
publishDate 2015
url http://eprints.utm.my/id/eprint/57711/
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