Venturi Tubes: Acoustic Attenuation With Flow Loss Considerations

Autor:	N. S. Dickey, Ahmet Selamet, Y. Kim, J. M. Novak
Rok vydání:	1998
Předmět:	Engineering business.industry Attenuation Acoustics Venturi effect General Engineering Aeroacoustics Fluid dynamics Mean flow Acoustic wave business Compressible flow Acoustic attenuation
Zdroj:	Journal of Vibration and Acoustics. 120:607-613
ISSN:	1528-8927 1048-9002
DOI:	10.1115/1.2893870
Popis:	The acoustic wave attenuation performance of Venturi tubes with zero mean fluid flow is investigated by: (1) combining analytical solutions for one-dimensional wave propagation in conical reducers, diffusers, and straight ducts; (2) employing a computational time-domain technique; and (3) conducting experiments in an extended impedance tube setup with four fabricated Venturi tubes and matching contraction chambers. The results from both analytical and computational approaches compare well with each other and the experimental data. The numerical technique is also applied to address the effects of a compressible mean flow on the acoustic behavior. Finally, the flow performance of the fabricated Venturi tubes is measured and the trade-offs are discussed between flow efficiency and acoustic performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fb1e67195ba1bfc7c3265d683fda4012 https://doi.org/10.1115/1.2893870 Zobrazit plný text záznamu