Abstract
Amplification and damping of acoustic intensity were demonstrated using thermoacoustic energy conversion. A differentially heated regenerator was installed near the velocity node of the resonator and thereby a high specific acoustic impedance and a traveling wave phase are obtained. The gain of acoustic intensity, resulting from the traveling wave energy conversion, reaches 1.7 in a positive temperature gradient and 0.3 in a negative gradient. The obtained results will contribute to the development of new acoustic devices using thermoacoustic power amplifiers and silencers.
Original language | English |
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Article number | 066304 |
Pages (from-to) | 066304-1-066304-6 |
Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
Volume | 69 |
Issue number | 6 2 |
DOIs | |
Publication status | Published - 2004 Jun 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics