Experimental method for temperature measurement on lateral planes along a Rijke tube to assess efficacy of control method [PDF]
MethodsX, 2023 The thermo-acoustic instabilities developed inside the combustor causes serious structural damage and reduces the life of power producing devices. The present work involves experimental investigation to assess effect of radial micro-jets air injection on
Nilaj N. Deshmukh +2 more
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Suppression of thermo-acoustic instabilities in horizontal Rijke tube using pulsating radial jets [PDF]
MethodsX, 2023 Thermo-acoustic instability has been observed in gas turbines, rocket engines, and aero-engines. Acoustic perturbations grow and change the characteristics of the flow due to instability.
Nilaj N. Deshmukh +6 more
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Development of closed-loop active control method for suppression of thermoacoustic instability using radial air micro-jets [PDF]
MethodsX, 2023 Thermoacoustic instabilities present in the combustor of power producing devices are having adverse effects on the performance. To avoid thermoacoustic instabilities, design of control method is very much essential.
Nilaj Deshmukh +5 more
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Numerical simulation of thermoacoustic instability in Rijke tube [PDF]
Xibei Gongye Daxue Xuebao, 2021 The influence of three different states on the thermoacoustic instability characteristics of Rijke tube was compared in order to reseach the influencing factors of thermoacoustic oscillation by using the Rijke tube model with stack as the heat source ...
Haozhe Liu, Hong YAN
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The Chemical Percolation Devolatilization Model Applied to the Devolatilization of Coal in High Intensity Acoustic Fields [PDF]
Journal of the Brazilian Chemical Society, 2002 The chemical percolation devolatilization model (CPD) was extended for the prediction of drying and devolatilization of coal particles in high intensity acoustic fields found in Rijke tube reactors.
Veras Carlos A. G. +2 more
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Robust Output Model Predictive Control of an Unstable Rijke Tube
Journal of Combustion, 2012 This work investigates the active control of an unstable Rijke tube using robust output model predictive control (RMPC). As internal model a polytopic linear system with constraints is assumed to account for uncertainties.
Fabian Jarmolowitz +3 more
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Early warnings are too late when parameters change rapidly [PDF]
Scientific ReportsTipping (or sudden transition) from a desirable state to an undesirable one can result in catastrophic changes, affecting natural environments, human societies and economies.
Rohit Radhakrishnan +4 more
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Thermoacoustic Instability in a Rijke Tube with a Distributed Heat Source [PDF]
Journal of Thermodynamics, 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.
Yang, Xiaochuan +2 more
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Experimental Investigation on Self-Excited Thermoacoustic Instability in a Rijke Tube
Applied Sciences, 2022 The experimental investigations into the thermoacoustic instability in a Rijke tube are presented. In order to capture the dynamics of the temperature, a single-ended tunable diode laser absorption spectroscopy (TDLAS) technique was developed, with a ...
Liezhao Luo +5 more
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Rijke tube: A nonlinear oscillator
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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