Investigation of Compressor Whoosh Noise in Automotive Turbochargers

Teng, Charlie; Homco, Steve

doi:10.4271/2009-01-2053

Cited by 46 publications

(61 citation statements)

References 6 publications

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“…Several authors (Evans & Ward, 2006;Gaudé et al, 2008;Teng et al, 2009) attributed whoosh noise to turbulence, without going into greater detail. The phenomenon may be related to the so-called tip clearance noise described by Raitor and Neise (2008), but Galindo et al (2015) found no influence of tip clearance ratio on whoosh noise.…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…Particularly, the compressor outlet hose was found to be the main source of radiated noise. Teng and Homco (2009) investigated radiated noise on a powertrain dyno in a semi-anechoic cell measured at full load conditions. Improvement of the compressor surge margin was sought so as to reduce whoosh noise, either changing compressor trim or using pre-whirl devices.…”

Section: Introductionmentioning

confidence: 99%

“…The bibliographic review shows that whoosh noise is commonly described as a broadband noise either in the 1 kHz-3 kHz band (Gaudé et al, 2008;Lee, Selamet, Kim, Kim, & Kim, 2009;Sevginer, Arslan, Sonmez, & Yilmaz, 2007) or in frequencies ranging from 4 kHz to 12 kHz (Figurella et al, 2012;Karim, Miazgowicz, Lizotte, & Zouani, 2013;Teng & Homco, 2009). Figurella et al (2012) pointed out that the former could be related to Diesel engines whereas the latter correspond to turbochargers installed in gasoline engines.…”

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confidence: 99%

“…In the literature, approaches to the understanding of the mechanism appear to be either purely experimental (Evans & Ward, 2006;Figurella et al, 2012;Teng & Homco, 2009) or essentially computational (Karim, Miazgowicz, Lizotte, & Zouani, 2013;Lee, Selamet, Kim, Kim, & Kim, 2009). The objective of this paper is to combine both techniques to attain a greater understanding of this particular phenomenon.…”

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confidence: 99%

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Simulations and measurements of automotive turbocharger compressor whoosh noise

Broatch

Galindo

Garcia

et al. 2015

Engineering Applications of Computational Fluid Mechanics

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Turbocharger noise has become a major concern in downsized automotive engine development. In this paper, the analysis is focused on the whoosh noise produced by the compressor when it is working near surge. A centrifugal compressor has been acoustically characterized on a turbocharger test rig mounted on an anechoic chamber. Three in-duct pressure signals forming a linear array are registered in order to obtain pressure components. In this way, meaningful pressure spectra and sound intensity level (SIL) compressor maps are obtained, showing an increase of SIL in the frequency window corresponding to whoosh noise. Besides, detached eddy simulations (DES) of the centrifugal compressor flow in two operating conditions near surge are performed. Good agreement is found between the experimental measurements and the CFD solutions in terms of predicted pressure spectra. Flow analysis is used to identify patterns responsible for the different features of the pressure spectra. At the simulated conditions, rotating instabilities in the compressor diffuser and inducer cause pressure oscillations in the frequency range of whoosh noise.

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Section: Numerical Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Simulations and measurements of automotive turbocharger compressor whoosh noise

Broatch

Galindo

Garcia

et al. 2015

Engineering Applications of Computational Fluid Mechanics

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“…Indeed, both the turbo-compressor itself [3,4] and the charge air cooler [5] introduce significant damping for those low frequencies issues. On the other hand, new sources appear in the mid and high frequency range [6]. Many solutions have been proposed in order to improve quietness for mid-frequency range noise in an efficient way while avoiding any increase in pressure drop.…”

Section: Introductionmentioning

confidence: 99%

Compact High-Pressure Intake Silencer with Multilayer Porous Material

Torregrosa¹,

Broatch²,

Raimbault³

et al. 2016

SAE Int. J. Passeng. Cars - Mech. Syst.

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Intake noise has become one the main concerns in the design of highly-supercharged downsized engines, which are expected to play a significant role in the upcoming years. Apart from the low frequencies associated with engine breathing, in these engines other frequency bands are also relevant which are related to the turbocharger operation, and which may radiate from the highpressure side from the compressor outlet to the charge air cooler. Medium frequencies may be controlled with the use of different typologies of resonators, but these are not so effective for relatively high frequencies. In this paper, the potential of the use of multi-layer porous materials to control those high frequencies is explored. The material sheets are located in the side chamber of an otherwise conventional resonator, thus providing a compact, lightweight and convenient arrangement. Several configurations have been tested in an impulse rig, without and with a superimposed mean flow, and the results have been analyzed with the help of a simple linear finite volume model accounting for the material. Then, the model has been used to explore different combinations of geometry and material properties, with the purpose of defining design guidelines for a proper choice of the device size and the material used, that may allow fulfilling the targeted value.

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Garcia¹

2018

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Investigation of Compressor Whoosh Noise in Automotive Turbochargers

Cited by 46 publications

References 6 publications

Simulations and measurements of automotive turbocharger compressor whoosh noise

Simulations and measurements of automotive turbocharger compressor whoosh noise

Compact High-Pressure Intake Silencer with Multilayer Porous Material

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