Dynamics of cool flames

Y Ju, CB Reuter, OR Yehia, TI Farouk… - Progress in Energy and …, 2019 - Elsevier
Cool flames play a critical role in ignition timing, burning rate, burning limits, engine
knocking, and emissions in conventional and advanced combustion engines. This paper …

Modeling of the effects of non-equilibrium excitation and electrode geometry on H2/air ignition in a nanosecond plasma discharge

X Mao, H Zhong, T Zhang, A Starikovskiy, Y Ju - Combustion and Flame, 2022 - Elsevier
This work presents the results of two-dimensional modeling of the effects of non-equilibrium
excitation and electrode geometry on H 2/air ignition in a nanosecond plasma discharge. A …

Effects of inter-pulse coupling on nanosecond pulsed high frequency discharge ignition in a flowing mixture

X Mao, H Zhong, Z Wang, T Ombrello, Y Ju - Proceedings of the …, 2023 - Elsevier
This work numerically investigates the effects of non-equilibrium nanosecond plasma
discharge pulse repetition frequency, pulse number, and flow velocity on the critical ignition …

A statistical analysis of developing knock intensity in a mixture with temperature inhomogeneities

MB Luong, S Desai, FEH Pérez, R Sankaran… - Proceedings of the …, 2021 - Elsevier
Knock formation and its intensity for a stoichiometric ethanol/air mixture under a
representative end-gas auto-ignition condition in IC engines with temperature …

Structures and propagation speeds of autoignition-assisted premixed n-heptane/air cool and warm flames at elevated temperatures and pressures

T Zhang, Y Ju - Combustion and Flame, 2020 - Elsevier
The laminar flame speeds and structures of near-limit autoignition-assisted cool and warm n-
heptane/air flames at different ignition Damkӧhler numbers which are the ratios between …

Effects of turbulence and temperature fluctuations on knock development in an ethanol/air mixture

MB Luong, S Desai, FE Hernández Pérez… - Flow, Turbulence and …, 2021 - Springer
The effects of turbulence on knock development and intensity for a thermally
inhomogeneous stoichiometric ethanol/air mixture at a representative end-gas autoignition …

Mechanism of end-gas autoignition induced by flame-pressure interactions in confined space

H Wei, X Zhang, H Zeng, R Deiterding, J Pan… - Physics of …, 2019 - pubs.aip.org
The main objective of this work is to comprehensively provide a fundamental understanding
of the entire process of the flame-pressure wave interactions with end-gas autoignition and …

Numerical studies on the ignition and propagation for spherically expanding premixed cool flames under gravitational conditions

Y Wang, X Guan, S Xie, M Zhou, Z Zhang, Z Chen… - Combustion and …, 2024 - Elsevier
Cool flame speed is a fundamental parameter, which requires special consideration in
terrestrial measurement due to the slow propagation of the cool flame, the intrusion of …

Investigation of engine's thermal management based on the characteristics of a map-controlled thermostat

H Basir, SA Hosseini, S Nasrollahnezhad… - … Communications in Heat …, 2022 - Elsevier
New concepts and strategies are continually being investigated to meet fuel efficiency
targets for new generations of internal combustion engines. Thermal management methods …

Studies of the dynamics of autoignition assisted outwardly propagating spherical cool and double flames under shock-tube conditions

T Zhang, AJ Susa, RK Hanson, Y Ju - Proceedings of the Combustion …, 2021 - Elsevier
The initiation, propagation, and transition of the autoignition assisted spherical cool flame
and double flame are studied numerically and experimentally using n-heptane/air/He …