Results 81 to 90 of about 255 (174)

Flame Propagation Characteristics of Syngas-Air in the Hele-Shaw Duct with Different Equivalence Ratios and Ignition Positions. [PDF]

ACS Omega, 2022
Diao S, Wen X, Guo Z, He W, Deng H, Wang F.   +5 more
europepmc   +1 more source

Experimental investigation on the thermoacoustic instability of boron/ethanol nanofluid fuel spray swirling flames

Applications in Energy and Combustion Science
Nanofluid fuel has attracted the interest of researchers for decades due to its prominent combustion and propulsive properties. However, combustion instability is inevitable in propulsive systems, and little is known about how nanofluid fuel drive or ...
Meng Wang, Zunyi Luo, Chen Fu, Kunpeng Liu, Yongjun Wang, Xiaoyang Wang, Juan Yu, Sheng Meng, Man Zhang, Yi Gao   +9 more
doaj   +1 more source

Acoustic Design Parameter Change of a Pressurized Combustor Leading to Limit Cycle Oscillations

Energies
When aiming to cut down on the emission of nitric oxides by gas turbine engines, it is advantageous to have them operate at low combustion temperatures. This is achieved by lean premixed combustion.
Mehmet Kapucu, Jim B. W. Kok, Artur K. Pozarlik   +2 more
doaj   +1 more source

Deep learning for early warning signals of tipping points. [PDF]

Proc Natl Acad Sci U S A, 2021
Bury TM, Sujith RI, Pavithran I, Scheffer M, Lenton TM, Anand M, Bauch CT.   +6 more
europepmc   +1 more source

Predicting the secondary dynamic mode interference phenomenon in thermoacoustic instability control. [PDF]

Proc Math Phys Eng Sci, 2016
Zalluhoglu U, Olgac N.
europepmc   +1 more source

On singularities and instability of reconstruction in thermoacoustic tomography

, 2009
We consider the problem of thermoacoustic tomography (TAT), in which one needs to reconstruct the initial value of a solution of the wave equation from its value on an observation surface. We show that if some geometric rays for the equation do not intersect the observation surface, the reconstruction in TAT is not Hölder stable.
openaire   +2 more sources

Universality in spectral condensation. [PDF]

Sci Rep, 2020
Pavithran I, Unni VR, Varghese AJ, Premraj D, Sujith RI, Vijayan C, Saha A, Marwan N, Kurths J.   +8 more
europepmc   +1 more source

Causality and intrinsic thermoacoustic instability modes

, 2014
Direct numerical simulation of a confined laminar premixed flame has been performed in an anechoic combustor, showing self-sustained intrinsic thermoacoustic oscillations. Theoretical predictions based on acoustic jump relations and the n − τ model for the flame are presented and causality concerns are discussed.
Courtine, Emilien, Selle, Laurent, Nicoud, Franck, Polifke, Wolfgang, Silva, Camilo, Bauerheim, Michaël, Poinsot, Thierry   +6 more
openaire   +2 more sources

Effects of Acoustic Excitation on the Combustion Instability of Hydrogen-Methane Lean Premixed Swirling Flames. [PDF]

ACS Omega, 2020
Deng K, Zhong Y, Wang M, Zhong Y, Luo KH.   +4 more
europepmc   +1 more source

Analysis of Pressure Fluctuation Characteristics of Central Swirl Combustors Based on Empirical Mode Decomposition. [PDF]

Sensors (Basel), 2022
Wang X, Zhang X, Yang C, Li H, Liu Y.
europepmc   +1 more source