Chemistry reduction using machine learning trained from non-premixed micro-mixing modeling: Application to DNS of a syngas turbulent oxy-flame with side-wall …

K Wan, C Barnaud, L Vervisch, P Domingo - Combustion and Flame, 2020 - Elsevier
A chemistry reduction approach based on machine learning is proposed and applied to
direct numerical simulation (DNS) of a turbulent non-premixed syngas oxy-flame interacting …

[HTML][HTML] Machine learning for integrating combustion chemistry in numerical simulations

HT Nguyen, P Domingo, L Vervisch, PD Nguyen - Energy and AI, 2021 - Elsevier
A strategy based on machine learning is discussed to close the gap between the detailed
description of combustion chemistry and the numerical simulation of combustion systems …

Numerical study of premixed flame dynamics in a closed tube: Effect of wall boundary condition

X Li, H Xiao, Q Duan, J Sun - Proceedings of the Combustion Institute, 2021 - Elsevier
Numerical simulations were conducted to study the dynamics of premixed flames
propagating in a closed tube by solving the fully compressible reactive Navier–Stokes …

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 …

The role of conductive heat losses on the formation of isolated flame cells in Hele-Shaw chambers

D Martínez-Ruiz, F Veiga-López… - Combustion and …, 2019 - Elsevier
The propagation of low-Lewis-number premixed flames is analyzed in a partially confined
Hele-Shaw chamber formed by two parallel plates separated a distance h apart. An …

Toward pore-scale simulation of combustion in porous media using a low-Mach hybrid lattice Boltzmann/finite-difference solver

SA Hosseini, D Thévenin - Physics of Fluids, 2023 - pubs.aip.org
ABSTRACT A hybrid numerical model previously developed for combustion simulations is
extended in this article to describe flame propagation and stabilization in porous media. The …

An investigation of the effects of wall materials on flame dynamics inside a H2-air micro-combustor

D Kundu, A Bhattacharya, S Sarkar, S Sarkar… - Physics of …, 2023 - pubs.aip.org
Micro-combustors, which are emerging as portable power sources, have serious flame
stabilization issues due to enhanced heat losses. Hydrogen, an eco-friendly alternative to …

Critical conditions for non-symmetric flame propagation in narrow channels: Influence of the flow rate, the thermal expansion, the Lewis number and heat-losses

A Dejoan, C Jiménez, VN Kurdyumov - Combustion and Flame, 2019 - Elsevier
This paper presents a numerical study of the propagation of isobaric premixed flames in
narrow channels, focusing primarily on the symmetry of solutions. Because of the complexity …

[HTML][HTML] A chemical kinetics based investigation on laminar burning velocity and knock occurrence in a spark-ignition engine fueled with ethanol–water blends

JLS Fagundez, RL Sari, A Garcia, FM Pereira… - Fuel, 2020 - Elsevier
Tests were conducted on a spark ignition engine fueled with ethanol fuels with water content
up to 30% by volume. Engine experiments, along with the determination of in-cylinder state …

High-precision 2D surface phosphor thermometry at kHz-rates during flame-wall interaction in narrow passages

AO Ojo, D Escofet-Martin, B Peterson - Proceedings of the Combustion …, 2023 - Elsevier
This work demonstrates high-speed 2D wall temperature measurements occurring during
flame-wall interaction (FWI) within a narrow channel. Such measurements are essential to …