Journal article
High amplitude nonlinear acoustic wave driven flow fields in cylindrical and conical resonators
The Journal of the Acoustical Society of America, v 134(2), pp 917-932
01 Aug 2013
PMID: 23927091
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A high fidelity computational fluid dynamic model is used to simulate the flow, pressure, and density fields generated in a cylindrical and a conical resonator by a vibrating end wall/piston producing high-amplitude standing waves. The waves in the conical resonator are found to be shock-less and can generate peak acoustic overpressures that exceed the initial undisturbed pressure by two to three times. A cylindrical (consonant) acoustic resonator has limitations to the output response observed at one end when the opposite end is acoustically excited. In the conical geometry (dissonant acoustic resonator) the linear acoustic input is converted to high energy un-shocked nonlinear acoustic output. The model is validated using past numerical results of standing waves in cylindrical resonators. The nonlinear nature of the harmonic response in the conical resonator system is further investigated for two different working fluids (carbon dioxide and argon) operating at various values of piston amplitude. The high amplitude nonlinear oscillations observed in the conical resonator can potentially enhance the performance of pulse tube thermoacoustic refrigerators and these conical resonators can be used as efficient mixers. (C) 2013 Acoustical Society of America.
Metrics
Details
- Title
- High amplitude nonlinear acoustic wave driven flow fields in cylindrical and conical resonators
- Creators
- Dion Savio Antao - Drexel UniversityBakhtier Farouk - Drexel University
- Publication Details
- The Journal of the Acoustical Society of America, v 134(2), pp 917-932
- Publisher
- Acoustical Soc Amer Amer Inst Physics
- Number of pages
- 16
- Grant note
- CBET-0853959 / US National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000322738900027
- Scopus ID
- 2-s2.0-84882344025
- Other Identifier
- 991019168435804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Audiology & Speech-language Pathology