Abstract
Thermoacoustic self-excited vibration is a phenomenon in which the air in a tube becomes unstable by a temperature gradient and begins to vibrate at the resonance frequency and grows to a certain steady amplitude. Regarding the mechanism of thermoacoustic phenomenon, there is no literature that clearly describes the cause of self-excited. In this study, we created the simulation model using cellular automaton method for the thermoacoustic device using the one-dimensional acoustic tube. We also modeled the heat source with a temperature gradient. At that time, the fact that the excitation amount has a phase difference with respect to the particle velocity at the vibration point is derived from the one-dimensional heat conduction in the cross-sectional direction of the air vibrating in the pipe having a temperature gradient in the flow path direction and the vibration amount is derived. We confirmed the validity of our idea in the experiment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: The Proceedings of the Dynamics & Design Conference
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.