A multi-scale sampling method for accurate and robust deep neural network to predict combustion chemical kinetics
Abstract Machine learning has long been considered a black box for predicting combustion
chemical kinetics due to the extremely large number of parameters and the lack of …
chemical kinetics due to the extremely large number of parameters and the lack of …
Visualization of ignition modes in methane-based mixture induced by shock wave focusing
Y Li, B Zhang - Combustion and Flame, 2023 - Elsevier
In this study, different ignition modes and detonation initiation due to shock wave focusing
are observed by combining a transient overpressure recording technique and a high-speed …
are observed by combining a transient overpressure recording technique and a high-speed …
Measurements of propane–O2–Ar laminar flame speeds at temperatures exceeding 1000 K in a shock tube
Laminar flame speed (SL) measurements of stoichiometric propane in an oxygen-argon
oxidizer were performed in a shock tube at unburned-gas temperatures of 296–1234 K and …
oxidizer were performed in a shock tube at unburned-gas temperatures of 296–1234 K and …
[HTML][HTML] Embedded direct numerical simulation of ignition kernel evolution and flame initiation in dual-fuel spray assisted combustion
The flame initiation process in dual-fuel spray assisted combustion is presently not fully
understood. Here, diesel spray assisted combustion of premixed methane/oxidizer/EGR is …
understood. Here, diesel spray assisted combustion of premixed methane/oxidizer/EGR is …
Experimental measurements of n-heptane flame speeds behind reflected shock waves with variable extents of pre-flame auto-ignition chemistry
The flame speeds of premixed stoichiometric n-heptane/21% O 2-79% Ar (so-called
“airgon”) flames with different extents of pre-flame auto-ignition chemistry were …
“airgon”) flames with different extents of pre-flame auto-ignition chemistry were …
Numerical studies on the ignition and propagation for spherically expanding premixed cool flames under gravitational conditions
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 …
terrestrial measurement due to the slow propagation of the cool flame, the intrusion of …
Numerical study on forced ignition and flame propagation in a counterflow of nitrogen-diluted hydrogen versus air
Hydrogen is widely perceived as the next generation of clean energy due to its zero carbon
emissions. However, there is an escalating concern regarding hydrogen safety. A deeper …
emissions. However, there is an escalating concern regarding hydrogen safety. A deeper …
Deep mechanism reduction (DeePMR) method for fuel chemical kinetics
Z Wang, Y Zhang, P Lin, E Zhao, E Weinan… - Combustion and …, 2024 - Elsevier
Fuel chemistry represents a typical complex system involving thousands of intermediate
species and elementary reactions. Traditional mechanism reduction methods, such as …
species and elementary reactions. Traditional mechanism reduction methods, such as …
[HTML][HTML] Dynamics of FREI with/without cool flame interaction
The interactions between cool flames and flames with repetitive extinction and ignition
(FREI) of stoichiometric n-heptane/air mixture were studied using a micro flow reactor with a …
(FREI) of stoichiometric n-heptane/air mixture were studied using a micro flow reactor with a …
Solving multiscale dynamical systems by deep learning
Multiscale dynamical systems, modeled by high-dimensional stiff ordinary differential
equations (ODEs) with wide-ranging characteristic timescales, arise across diverse fields of …
equations (ODEs) with wide-ranging characteristic timescales, arise across diverse fields of …