Dynamic stabilization of the Rayleigh-Bénard instability by acceleration modulation
Abstract
This paper presents the results of an experimental investigation of the parametric stabilization of Rayleigh-Bénard convection through the imposition of sinusoidal vibration. The ability to dynamically stabilize Rayleigh-Bénard convection using acceleration modulation is of interest to groups who design and study thermoacoustic machines as the introduction of parasitic convection can have deleterious effects on the desired operation and thermodynamic efficiency of the device. These performance issues caused by suspected convective instability have been seen both in traveling wave thermoacoustic refrigerators and cryogenic pulse tube chillers. This paper reports the results of an experiment intended to determine the vibratory, fluidic, and geometric conditions under which a small, rectangular container of statically unstable fluid may be stabilized by vertical vibration with comparison to the computational methods of R. M. Carbo [J. Acoust. Soc. Am. 135, 654–668 (2014)]. Measurements are obtained using a large-displacement kinematic shaker of an original design with the convecting gas characterized using both thermal transport measurements and flow visualization employing tracer particles illuminated by a diode laser light sheet phase-locked to the shaker. These experiments are believed to be the first demonstrating the suppression of convection through vibration in rectangular containers.
- Authors:
- Publication Date:
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- OSTI Identifier:
- 1478551
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Journal of the Acoustical Society of America
- Additional Journal Information:
- Journal Name: Journal of the Acoustical Society of America Journal Volume: 144 Journal Issue: 4; Journal ID: ISSN 0001-4966
- Publisher:
- Acoustical Society of America (ASA)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Swaminathan, Anand, Garrett, Steven L., Poese, Matthew E., and Smith, Robert W. M. Dynamic stabilization of the Rayleigh-Bénard instability by acceleration modulation. United States: N. p., 2018.
Web. doi:10.1121/1.5063820.
Swaminathan, Anand, Garrett, Steven L., Poese, Matthew E., & Smith, Robert W. M. Dynamic stabilization of the Rayleigh-Bénard instability by acceleration modulation. United States. https://doi.org/10.1121/1.5063820
Swaminathan, Anand, Garrett, Steven L., Poese, Matthew E., and Smith, Robert W. M. Tue .
"Dynamic stabilization of the Rayleigh-Bénard instability by acceleration modulation". United States. https://doi.org/10.1121/1.5063820.
@article{osti_1478551,
title = {Dynamic stabilization of the Rayleigh-Bénard instability by acceleration modulation},
author = {Swaminathan, Anand and Garrett, Steven L. and Poese, Matthew E. and Smith, Robert W. M.},
abstractNote = {This paper presents the results of an experimental investigation of the parametric stabilization of Rayleigh-Bénard convection through the imposition of sinusoidal vibration. The ability to dynamically stabilize Rayleigh-Bénard convection using acceleration modulation is of interest to groups who design and study thermoacoustic machines as the introduction of parasitic convection can have deleterious effects on the desired operation and thermodynamic efficiency of the device. These performance issues caused by suspected convective instability have been seen both in traveling wave thermoacoustic refrigerators and cryogenic pulse tube chillers. This paper reports the results of an experiment intended to determine the vibratory, fluidic, and geometric conditions under which a small, rectangular container of statically unstable fluid may be stabilized by vertical vibration with comparison to the computational methods of R. M. Carbo [J. Acoust. Soc. Am. 135, 654–668 (2014)]. Measurements are obtained using a large-displacement kinematic shaker of an original design with the convecting gas characterized using both thermal transport measurements and flow visualization employing tracer particles illuminated by a diode laser light sheet phase-locked to the shaker. These experiments are believed to be the first demonstrating the suppression of convection through vibration in rectangular containers.},
doi = {10.1121/1.5063820},
journal = {Journal of the Acoustical Society of America},
number = 4,
volume = 144,
place = {United States},
year = {Tue Oct 23 00:00:00 EDT 2018},
month = {Tue Oct 23 00:00:00 EDT 2018}
}
https://doi.org/10.1121/1.5063820
Web of Science
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