Results 11 to 20 of about 372,349 (178)
Rijke tube: A nonlinear oscillator [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2022 Dynamical systems theory has emerged as an interdisciplinary area of research to characterize the complex dynamical transitions in real-world systems. Various nonlinear dynamical phenomena and bifurcations have been discovered over the decades using different reduced-order models of oscillators.
Krishna Manoj +3 more
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Thermoacoustic instabilities in the Rijke tube: experiments and modeling [PDF]
, 2003 Thermoacoustic instability can appear in thermal devices when unsteady heat release is coupled with pressure perturbations. This effect results in excitation of eigen acoustic modes of the system. These instabilities are important in various technical applications, for instance, in rocket motors and thermoacoustic engines.
Konstantin Matveev +1 more
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Thermoacoustic Instability in a Rijke Tube with a Distributed Heat Source [PDF]
Journal of Thermodynamics, Volume 2015, Issue 1, 2015., 2015 A Rijke tube with a distributed heat source is investigated. Driven by the widely existing thermoacoustic instability in lean premixed gas turbine combustors, this work aims to explore the physicochemical underpinning and assist in the elucidation and analysis of this problem.
Xiaochuan Yang +3 more
wiley +2 more sources
Thermoacoustic Instabilities in an Annular Rijke Tube
Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2010 Thermoacoustic instabilities are a major concern in the design of gas turbine combustors. Most modern combustion chambers have an annular shape with multiple circumferentially arranged burners and, accordingly, suffer often from azimuthal instability modes.
Jonas P. Moeck +2 more
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Pulsating burning of petroleum coke in the Rijke tube
Journal of Physics: Conference Series, 2019 Abstract In this paper, the combustion of petroleum coke is investigated. It is established that fluctuations of gas in the Rijke tube excited when petroleum coke burns with propane-air mixture. It is shown that over time the mixture supply can be significantly reduced due to the intensification of coke combustion by oscillations.
Larionov V. +4 more
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Flow Characterisation of Flames in an Acoustically Excited Chamber [PDF]
, 2012 Flame-acoustic wave interactions have been studied widely in the combustion community; however the whole physicochemical mechanism is still not clear.
Chen, Li-Wei
core +6 more sources
Experiments and identification of thermoacoustic instabilities with the Rijke tube [PDF]
2020 IEEE Conference on Control Technology and Applications (CCTA), 2020 ISBN:978-1-7281-7141 ...
Andrea Iannelli +3 more
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Energy and AI, 2021 The intermittent nature of operation and unpredictable availability of renewable sources of energy (e.g., wind and solar) would require the combustors in fossil-fuel power plants, sharing the same grid, to operate with large turn-down ratios. This brings
Sudeepta Mondal +3 more
doaj +1 more source
IEEE Access, 2023 This paper proposes an adaptive scheme for the boundary stabilization of thermoacoustic instability in the Rijke tube system using the backstepping method. The mathematical model of the system is characterized by a $2\times 2$ linear hyperbolic partial
Elham Aarabi +2 more
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Feather function and the evolution of birds
Biological Reviews, Volume 98, Issue 2, Page 540-566, April 2023., 2023 ABSTRACT The ability of feathers to perform many functions either simultaneously or at different times throughout the year or life of a bird is integral to the evolutionary history of birds. Many studies focus on single functions of feathers, but any given feather performs many functions over its lifetime. These functions necessarily interact with each
Ryan S. Terrill, Allison J. Shultz
wiley +1 more source