Premixed flames subjected to extreme turbulence: Some questions and recent answers

JF Driscoll, JH Chen, AW Skiba, CD Carter… - Progress in Energy and …, 2020 - Elsevier
It has been predicted that several changes will occur when premixed flames are subjected to
the extreme levels of turbulence that can be found in practical combustors. This paper is a …

Structure and dynamics of highly turbulent premixed combustion

AM Steinberg, PE Hamlington, X Zhao - Progress in Energy and …, 2021 - Elsevier
Turbulent premixed combustion involves simultaneous and mutually interacting fluid,
chemical, and transport phenomena spanning a wide range of spatial and temporal scales …

Experimental investigation on ammonia combustion behavior in a spark-ignition engine by means of laminar and turbulent expanding flames

C Lhuillier, P Brequigny, F Contino… - Proceedings of the …, 2021 - Elsevier
Ammonia combustion appears as a meaningful way to retrieve stored amounts of excess
variable renewable energy, and the spark-ignition (SI) engine has been proposed as a …

Recent developments in DNS of turbulent combustion

P Domingo, L Vervisch - Proceedings of the Combustion Institute, 2023 - Elsevier
The simulation of turbulent flames fully resolving the smallest flow scales and the thinnest
reaction zones goes along with specific requirements, which are discussed from …

Advances and challenges of the conditional source-term estimation model for turbulent reacting flows

MM Salehi, C Devaud, WK Bushe - Progress in Energy and Combustion …, 2024 - Elsevier
Abstract Conditional Source-term Estimation (CSE) is a turbulence–chemistry interaction
model to simulate reacting flows. This model is similar to the Conditional Moment Closure …

Towards the distributed burning regime in turbulent premixed flames

AJ Aspden, MS Day, JB Bell - Journal of fluid mechanics, 2019 - cambridge.org
Three-dimensional numerical simulations of canonical statistically steady, statistically planar
turbulent flames have been used in an attempt to produce distributed burning in lean …

Influence of molecular transport on burning rate and conditioned species concentrations in highly turbulent premixed flames

HC Lee, P Dai, M Wan, AN Lipatnikov - Journal of Fluid Mechanics, 2021 - cambridge.org
Apparent inconsistency between (i) experimental and direct numerical simulation (DNS)
data that show the significant influence of differential diffusion on the turbulent burning rate …

Evolution of local flame displacement speeds in turbulence

HL Dave, S Chaudhuri - Journal of Fluid Mechanics, 2020 - cambridge.org
In this study, we assess the veracity of models for density-weighted local flame displacement
speed of turbulent premixed flames. It will be shown that a combination of two models, one …

[HTML][HTML] Flame/turbulence interaction in ammonia/air premixed flames at high karlovitz numbers

L Xu, Q Fan, X Liu, X Cai, AA Subash… - Proceedings of the …, 2023 - Elsevier
Turbulent premixed flames subjected to extreme levels of turbulence exhibit reaction zone
broadening and thinning. Instantaneous flame structures visualized using advanced laser …

Analysis of high-speed combustion regimes of hydrogen jet in supersonic vitiated airstream

A Mura, A Techer, G Lehnasch - Combustion and Flame, 2022 - Elsevier
Highly-resolved reactive simulations of a hydrogen jet injected into a transverse supersonic
flow of vitiated air at Mach 2 are conducted. The operating conditions are chosen to be …