Results 111 to 120 of about 2,865 (193)

Study on thermoacoustic instabilities in an aircraft engine combustor using 1D network model

Case Studies in Thermal Engineering
The purpose of this study was to evaluate the combustion instability characteristics of target aircraft combustors under development using network thermoacoustic (TA) models.
Juchan Son, Seungchai Jung, Shaun Kim, Daesik Kim   +3 more
doaj   +1 more source

All-optical light-induced thermoacoustic spectroscopy for remote and non-contact gas sensing. [PDF]

Photoacoustics, 2022
Pan Y, Zhao J, Lu P, Sima C, Zhang W, Fu L, Liu D, Zhang J, Wu H, Dong L.   +9 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

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

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

Mitigation of thermoacoustic instabilities via porous plugs

Journal of Fluid Mechanics
The interaction between the dynamics of a flame front and the acoustic field within a combustion chamber represents an aerothermochemical problem with the potential to generate hazardous instabilities, which limit burner performance by constraining design and operational parameters.
Pedro Gatón-Pérez, Matías Braun, Siba Prasad Choudhury, Victor Muntean, Daniel Martínez-Ruiz   +4 more
openaire   +2 more sources

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

Low order modeling of thermoacoustic instabilities

, 2022
Pollution and The Greenhouse Effect are a concern in our society. The high levels of CO2, NOx, ozone, and methane gasses are alarming and have pushed gas turbine industries to develop more environmentally friendly combustors. In the past years, Lean Premixed Combustors have been identified as a potential solution.
openaire   +1 more source

Passive control of thermoacoustic instability in a high-efficiency domestic gas stove with fine-tuning burner

Case Studies in Thermal Engineering
Thermoacoustic oscillation is a significant challenge in the development of advanced thermal power and propulsion systems. The present work focuses on the whistling phenomenon in the practical burners of a developing high-efficiency domestic gas stove ...
Zhixin Zhu, Jinxiang Zhu, Yuanqi Fang, Gaofeng Wang, Chengbiao Ma, Xiaogang Liu, Xiaoyan Fang, Jianfeng Zhang, Yu Yu   +8 more
doaj   +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