Results 31 to 40 of about 3,374 (244)

Experiments and identification of thermoacoustic instabilities with the Rijke tube [PDF]

open access: yes2020 IEEE Conference on Control Technology and Applications (CCTA), 2020
ISBN:978-1-7281-7141 ...
Andrea Iannelli   +3 more
openaire   +1 more source

Bursting Oscillation and Its Mechanism of a Generalized Duffing–Van der Pol System with Periodic Excitation

open access: yesComplexity, Volume 2021, Issue 1, 2021., 2021
The complex bursting oscillation and bifurcation mechanisms in coupling systems of different scales have been a hot spot domestically and overseas. In this paper, we analyze the bursting oscillation of a generalized Duffing–Van der Pol system with periodic excitation.
Youhua Qian   +3 more
wiley   +1 more source

Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]

open access: yes, 2014
This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Bloxsidge   +48 more
core   +5 more sources

Suppression of thermo-acoustic instabilities in horizontal Rijke tube using pulsating radial jets

open access: yesMethodsX, 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
doaj   +1 more source

Synchronization framework for modeling transition to thermoacoustic instability in laminar combustors

open access: yes, 2020
We, herein, present a new model based on the framework of synchronization to describe a thermoacoustic system and capture the multiple bifurcations that such a system undergoes.
Saha, Abhishek   +3 more
core   +1 more source

Using LES to Study Reacting Flows and Instabilities in Annular Combustion Chambers [PDF]

open access: yes, 2012
Great prominence is put on the design of aeronautical gas turbines due to increasingly stringent regulations and the need to tackle rising fuel prices.
A Giauque   +36 more
core   +4 more sources

3D convolutional selective autoencoder for instability detection in combustion systems

open access: yesEnergy and AI, 2021
While analytical solutions of critical (phase) transitions in dynamical systems are abundant for simple nonlinear systems, such analysis remains intractable for real-life dynamical systems. A key example is thermoacoustic instability in combustion, where
Tryambak Gangopadhyay   +6 more
doaj   +1 more source

Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers [PDF]

open access: yes, 2012
The objectives of this paper are the description of azimuthal instability modes found in annular combus- tion chambers using two numerical tools: (1) Large Eddy Simulation (LES) methods and (2) acoustic solv- ers.
Gicquel, Laurent Y.M.   +4 more
core   +4 more sources

Thermoacoustic stability prediction using classification algorithms

open access: yesData-Centric Engineering, 2022
Predicting the occurrence of thermoacoustic instabilities is of major interest in a variety of engineering applications such as aircraft propulsion, power generation, and industrial heating. Predictive methodologies based on a physical approach have been
Renaud Gaudron, Aimee S. Morgans
doaj   +1 more source

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