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Noise from turbo-charged diesel engine exhaust systems
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Flow acoustics.ORCID iD: 0000-0002-8474-8563
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2005 (English)In: 12th International Congress on Sound and Vibration 2005: ICSV 2005, 2005, 2231-2238 p.Conference paper (Refereed)
Abstract [en]

This paper summarises the main results of an EU-funded research project, ARTEMIS (G3RD-CT-2001-00511), on noise from turbo-charged Diesel engine exhaust systems. The project started in September 2001 and ended in August 2004 and was co-ordinated by KTH. The project had 10 partners from 6 different European countries, 5 universities and 5 companies including some major truck and car manufacturers. The main objective was to develop new and improved computational tools for predicting noise from exhaust systems. New models for describing the engine as an acoustic source were developed and experimentally tested. They include a linear time-varying source model and a non-linear frequency domain model. Linear time-invariant source data was also determined both from experiments and using 1-D gas-exchange simulations. New and improved models were developed for the turbo-group including non-linear time domain models and a linear time-varying model. New models were developed and experimentally tested for sound transmission through the Diesel particulate filter included in modern Diesel engine after-treatment devices. Improved models were developed for describing perforate mufflers with high mean flow velocities. Improved experimental techniques for determination of transmission properties of duct system components were developed. Models were developed and coded for sound reflection and radiation from tailpipe openings. Full experimental validation of the Munt theory for radiation from open pipes with flow was produced. In conclusion it can be said that the project was successful and gave many useful results.

Place, publisher, year, edition, pages
2005. 2231-2238 p.
, International Congress on Sound and Vibration, ICSV 2005, Vol. 3
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-148517ScopusID: 2-s2.0-84881590953ISBN: 978-162748149-6OAI: diva2:740085
12th International Congress on Sound and Vibration 2005, ICSV 2005; Lisbon, Portugal, 11-14 July, 2005

QC 20140822

Available from: 2014-08-22 Created: 2014-08-08 Last updated: 2014-11-17Bibliographically approved

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