Results 41 to 50 of about 372,349 (178)
Shipin yu jixieObjectiveTo investigate the enhancement effect of self-excited thermoacoustic oscillation on the drying process of solid foods.MethodsA pulsating hot air drying device based on a Rijke tube resonator structure is designed.
ZHANG Han +4 more
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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
doaj
Learning and Characterizing Chaotic Attractors of a Lean Premixed Combustor
EnergiesThis paper is about the characteristics of and a method to recognize the onset of limit cycle thermoacoustic oscillations in a gas turbine-like combustor with a premixed turbulent methane/air flame.
Sara Navarro-Arredondo, Jim B. W. Kok
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Fokker–Planck modeling of the stochastic dynamics of a Rijke tube
Chaos: An Interdisciplinary Journal of Nonlinear ScienceWe derive and numerically validate a low-order oscillator model to capture the stochastic dynamics of a prototypical thermoacoustic system (a Rijke tube) undergoing a subcritical Hopf bifurcation in the presence of additive noise. We find that on the fixed-point branch before the bifurcation, the system is dominated by the first duct mode, and the ...
Minwoo Lee +2 more
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Experimental and 2D CFD study of thermoacoustic instabilities
Journal of Thermal EngineeringThermoacoustic instability, caused by the interaction of unsteady heat release and acoustic waves, is a significant challenge in combustion systems such as gas turbines and aero engines.
Suchita K. Kadam, Nilaj N. Deshmukh
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Passive suppression of thermoacoustic instability in a Rijke tube
IFAC-PapersOnLine, 2016 Abstract This article investigates passive stabilization of thermoacoustic dynamics in a Rijke tube by using a Helmholtz resonator. Under certain assumptions, the mathematical model of the dynamics is shown to fall into the linear time-invariant multiple time delay systems class of neutral type.
Umut Zalluhoglu, Nejat Olgac
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, 2019 Rijkeova trubice je starý fyzikální experiment, který demonstruje spontánní vznik zvuku v otevřené trubce se zdrojem tepla. Tento jev je zkoumaný zejména ve spojitosti s jinými termoakustickými systémy. V této práci jsem se k tomuto experimentu vrátil se
Krištof Pučejdl
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Physics-constrained neural networks for direct parameter identification under model-form uncertainty
Machine Learning: Science and TechnologyParameter identification in nonlinear dynamical systems is complicated by model-form uncertainty arising from systematic biases that violate the zero-mean error assumption of standard data assimilation methods.
Y Sungtaek Ju
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Youngstown Sheet and Tube Company's Hubbard Works
, 1910 This is an early photograph of Youngstown Sheet and Tube Company's Hubbard Works, in Hubbard, Ohio, ca. 1910-1919. Part of Youngstown Sheet and Tube Company's Youngstown District, the Hubbard Works was one of the first steel mills acquired by ...
Youngstown Sheet and Tube Company
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Galerkin Approximations for Thermoacoustic Instability in a Rijke's Tube
Procedia IUTAM, 2017 Abstract A simple mathematical model for thermoacoustic instability (TAI) in a Rijke's tube results in a first-order neutral delay differential equation (NDDE). In this work, the NDDE governing the TAI is converted to a partial differential equation (PDE) and then into a system of ordinary differential equations (ODEs) using Galerkin approximations ...
Shanti Swaroop Kandala +2 more
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