Exceptional points in the thermoacoustic spectrum
Journal of Sound and Vibration
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Mensah, G., Magri, L., Silva, C., Buschmann, P., & Moeck, J. (2018). Exceptional points in the thermoacoustic spectrum. Journal of Sound and Vibration, 433 124-128. https://doi.org/10.1016/j.jsv.2018.06.069
© 2018 Elsevier Ltd Exceptional points are found in the spectrum of a prototypical thermoacoustic system as the parameters of the flame transfer function are varied. At these points, two eigenvalues and the associated eigenfunctions coalesce. The system's sensitivity to changes in the parameters becomes infinite. Two eigenvalue branches collide at the exceptional point as the interaction index is increased. One branch originates from a purely acoustic mode, whereas the other branch originates from an intrinsic thermoacoustic mode. The existence of exceptional points in thermoacoustic systems has implications for physical understanding, computing, modeling and control.
Royal Academy of Engineering (RAEng) ()
External DOI: https://doi.org/10.1016/j.jsv.2018.06.069
This record's URL: https://www.repository.cam.ac.uk/handle/1810/280210