Limit-Cycle Properties of a Rijke Tube
received 24.05.2003, published 12.06.2003
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Thermoacoustic instability appears when unsteady heat release is favourably coupled with acoustic pressure perturbations. The important technical applications involving thermoacoustics are combustion instability in rocket motors and low-pollutant lean flames; noisy industrial burners; pulsed combustors; and thermoacoustic engines. The simplest device for studying thermoacoustic instability is a Rijke tube. In this work, a series of experiments is carried out to determine the nonlinear behavior of the transition to instability and the excited regimes for an electrically driven Rijke tube. A hysteresis effect in the stability boundary is observed. A mathematical theory involving heat transfer, acoustics, and thermoacoustic interactions is developed to predict the transition to instability and limit-cycle properties.
13 pages, 7 figures
Сitation: K. I. Matveev, F. E. C. Culick. Limit-Cycle Properties of a Rijke Tube. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2003, 12.
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Konstantin I. Matveev - Ph.D. in Mechanical Engineering from California Institute of Technology in 2003. Dr. Matveev will continue his research career at Los Alamos National Laboratory. Research interests include thermal and nonlinear acoustics.
F. E. C. Culick - Richard L. and Dorothy M. Hayman Professor of Mechanical Engineering and Professor of Jet Propulsion at California Institute of Technology. Ph.D. from MIT in 1961. Research interests: nonlinear acoustics in combustion systems, active control of combustion instabilities, and advanced spacecraft propulsion.