Advances and challenges in modeling high-speed turbulent combustion in propulsion systems

ED Gonzalez-Juez, AR Kerstein, R Ranjan… - Progress in Energy and …, 2017 - Elsevier
Combustion environments in propulsion systems involve the interaction of a variety of
physics. In devices such as augmentors, ramjets and scramjets, such environments include …

Thin reaction zone and distributed reaction zone regimes in turbulent premixed methane/air flames: Scalar distributions and correlations

B Zhou, C Brackmann, Z Wang, Z Li, M Richter… - Combustion and …, 2017 - Elsevier
A series of premixed turbulent methane/air jet flames in the thin reaction zone (TRZ) and
distributed reaction zone (DRZ) regimes were studied using simultaneous three-scalar high …

Simultaneous 10 kHz TPIV, OH PLIF, and CH2O PLIF measurements of turbulent flame structure and dynamics

JR Osborne, SA Ramji, CD Carter, S Peltier… - Experiments in …, 2016 - Springer
Simultaneous 10 kHz repetition-rate tomographic particle image velocimetry, hydroxyl
planar laser-induced fluorescence (OH PLIF), and formaldehyde (CH _2 2 O) PLIF were …

Contributions of flame thickening and extinctions to a heat release rate marker of intensely turbulent premixed hydrogen-enriched methane-air flames

S Mohammadnejad, Q An, P Vena, S Yun… - Combustion and …, 2021 - Elsevier
Influences of the reaction zone thickening and extinctions on a heat release rate marker of
extremely turbulent hydrogen-enriched methane-air flames are investigated using …

Thick reaction zones in non-flamelet turbulent premixed combustion

S Mohammadnejad, Q An, P Vena, S Yun… - Combustion and …, 2020 - Elsevier
Internal structure of extremely turbulent flames is investigated experimentally using
simultaneous planar laser-induced fluorescence of formaldehyde molecule and hydroxyl …

A revisit to the validity of flamelet assumptions in turbulent premixed combustion and implications for future research

S Kheirkhah, ÖL Gülder - Combustion and Flame, 2022 - Elsevier
The flamelet assumption has been widely used for analysis and modeling of turbulent
premixed flames over the past decades. Despite its popularity, validity of this assumption …

Direct comparison of two-dimensional and three-dimensional laser-induced fluorescence measurements on highly turbulent flames

L Ma, Q Lei, T Capil, SD Hammack, CD Carter - Optics letters, 2017 - opg.optica.org
This Letter reports the first direct comparison between two-dimensional (2D) and three-
dimensional (3D) laser-induced fluorescence (LIF) applied to highly turbulent flames, with …

Internal structure of hydrogen-enriched methane–air turbulent premixed flames: Flamelet and non-flamelet behavior

S Mohammadnejad, P Vena, S Yun, S Kheirkhah - Combustion and Flame, 2019 - Elsevier
Internal structure of pure and hydrogen-enriched methane–air flames were investigated
experimentally, using simultaneous Planar Laser-Induced Fluorescence of formaldehyde …

Subgrid-scale modeling of reaction-diffusion and scalar transport in turbulent premixed flames

R Ranjan, B Muralidharan, Y Nagaoka… - Combustion Science …, 2016 - Taylor & Francis
ABSTRACT A numerical study of premixed flame-turbulence interaction is performed to
investigate the effects of turbulence on the structural features of the flame and the subgrid …

Turbulent flame-vortex dynamics of bluff-body premixed flames

MK Geikie, CJ Rising, AJ Morales, KA Ahmed - Combustion and Flame, 2021 - Elsevier
To better understand the coupled dynamics of turbulence and premixed flames, this study
experimentally investigates the effects of turbulence on reacting vorticity dynamics. In this …