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
doaj +2 more sources
Preventing a global transition to thermoacoustic instability by targeting local dynamics [PDF]
Scientific Reports, 2022 The burning of fossil fuels to generate power produces harmful emissions. Lowering such emissions in gas turbine engines is possible by operating them at fuel-lean conditions.
Nitin Babu George +5 more
doaj +2 more sources
Emerging topics in nanophononics and elastic, acoustic, and mechanical metamaterials: an overview. [PDF]
Nanophotonics, 2023 Abstract This broad review summarizes recent advances and “hot” research topics in nanophononics and elastic, acoustic, and mechanical metamaterials based on results presented by the authors at the EUROMECH 610 Colloquium held on April 25–27, 2022 in Benicássim, Spain.
Krushynska AO +34 more
europepmc +2 more sources
Experimental Study of Flame Dynamics in a Triple-Injector Swirling Nonpremixed Combustor Under Different Thermoacoustic Self-Excited Instability Modes [PDF]
SensorsCombustion instability is one of the prominent and unavoidable problems in the design of high-performance propulsion systems. This study investigates the heat release rate (HRR) responses in a triple-nozzle swirling nonpremixed combustor under various ...
Xiang Zhang, Suofang Wang, Yong Liu
doaj +2 more sources
Coupling-induced instability in a ring of thermoacoustic oscillators. [PDF]
Proc Math Phys Eng Sci, 2022 Thermoacoustic instabilities in can-annular combus-tors of stationary gas turbines lead to unstable Bloch modes which appear as rotating acoustic pressure waves along the turbine annulus. The multiscale, multiphysical nature of the full problem makes a detailed analysis challenging.
Pedergnana T, Noiray N.
europepmc +6 more sources
Journal of Combustion, 2022 Lean premixed (LPM) combustion processes are of increased interest to the gas turbine industry due to their reduction in harmful emissions. These processes are susceptible to thermoacoustic instabilities, which are produced when energy added by an in ...
Cody Dowd, Joseph Meadows
doaj +2 more sources
Focused Power Ultrasound Mediated Inferior Perirenal Adipose Tissue Modification Therapy for Essential Hypertension: A Pilot Study. [PDF]
J Clin Hypertens (Greenwich)ABSTRACT Perirenal adipose tissue (PRAT) contributes to the maintenance of elevated blood pressure through afferent nerves and serves as an important peripheral, modifiable target for hypertension management. This single‐center, prospective pilot trial assessed the feasibility and safety of a novel focused power ultrasound device for perirenal adipose ...
Hua Y +15 more
europepmc +2 more sources
Experiments and modelling of rate-dependent transition delay in a stochastic subcritical bifurcation. [PDF]
R Soc Open Sci, 2018 Complex systems exhibiting critical transitions when one of their governing parameters varies are ubiquitous in nature and in engineering applications. Despite a vast literature focusing on this topic, there are few studies dealing with the effect of the
Bonciolini G, Ebi D, Boujo E, Noiray N.
europepmc +3 more sources
Bayesian Nonparametric Modeling of Categorical Data for Information Fusion and Causal Inference [PDF]
Entropy, 2018 This paper presents a nonparametric regression model of categorical time series in the setting of conditional tensor factorization and Bayes network. The underlying algorithms are developed to provide a flexible and parsimonious representation for fusion
Sihan Xiong, Yiwei Fu, Asok Ray
doaj +2 more sources
Averaging of thermoacoustic azimuthal instabilities [PDF]
Journal of Sound and Vibration, 2021 Journal of Sound and Vibration (2020)
Ghirardo, G., Gant, F.
openaire +2 more sources