Abstract
Self-sustained oscillations in a gas column induced by a temperature gradient are periodically perturbed by external forcing. In this study, a synchronization bifurcation diagram is mapped out and the power source required to sustain synchronized oscillations is identified using sound intensity measurements. We demonstrate that, even if small forcing entrains the natural frequency or if strong forcing completely suppresses the natural dynamics, the external forcing device is never the source of power; this source resides in the temperature gradient, which creates natural-frequency oscillations.
| Original language | English |
|---|---|
| Article number | 103001 |
| Journal | journal of the physical society of japan |
| Volume | 82 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2013 Oct 1 |
Keywords
- Acoustic synchronization
- Power flux density
- Sound source
- Thermoacoustics
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Yoshida, T., Yazaki, T., Ueda, Y., & Biwa, T. (2013). Forced synchronization of periodic oscillations in a gas column: Where is the power source? journal of the physical society of japan, 82(10), [103001]. https://doi.org/10.7566/JPSJ.82.103001