Two-dimensional visualization of induction zone in hydrogen detonations

SBR Chavez, KP Chatelain, DA Lacoste - Combustion and Flame, 2023 - Elsevier
The induction zone length is an important length scale for gaseous detonations, as it is
correlated with other characteristic parameters such as the cell size. A good characterization …

Towards laser-induced fluorescence of nitric oxide in detonation

KP Chatelain, SB Rojas Chavez, J Vargas, DA Lacoste - Shock Waves, 2023 - Springer
This study aims to validate the new developments in our in-house spectroscopic code (KAT-
LIF) to perform NO-LIF simulations for detonation conditions, as well as evaluating the …

[HTML][HTML] Characterization of detonation waves by simultaneous OH and NO planar laser-induced fluorescence

SBR Chavez, KP Chatelain, M Alicherif… - Applications in Energy …, 2024 - Elsevier
This study presents a thorough evaluation of the simultaneous planar laser-induced
fluorescence (PLIF) on hydroxyl (OH) radicals and nitric oxide (NO), for characterizing …

Experimental characterization of the cell cycle for multicellular detonations

M Alicherif, SBR Chavez, KP Chatelain, TF Guiberti… - Combustion and …, 2024 - Elsevier
The detonation front's unstable structure leads to an unsteady and three-dimensional (3D)
phenomenon that renders the study of the cell cycle challenging. Traditionally, fundamental …

[PDF][PDF] Induction zone length measurements for regular cell pattern by nitric oxide planar laser-induced fluorescence

M Alicherif, KP Chatelain, SB Rojas Chavez… - 29th ICDERS, SNU …, 2023 - icders.org
Detonation is the supersonic mode of propagation of combustion waves in premixed
reactive mixtures. It is associated with high energy release, pressure, and temperature for …

Experimental characterization of the cell cycle for regular Chapman-Jouguet detonations

M Alicherif, SBR Chavez, K Chatelain, T Guiberti… - 2023 - repository.kaust.edu.sa
The detonation front's unstable structure leads to an unsteady and threedimensional (3D)
phenomenon that renders the study of the cell cycle challenging. Traditionally, fundamental …

Characterization of H2-Air Detonations With High-Speed (2.5 MHz) Rayleigh Scattering and Single-Shot Planar Laser-Induced Fluorescence of Nitric Oxide

KP Chatelain, M Ali Cherif, TF Guiberti… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
This study characterizes a CJ hydrogen-air detonation using high-speed Rayleigh scattering
and single-shot planar laser-induced fluorescence of nitric oxide (NO-PLIF). Firstly, we …

Assessment of the Wall Effects on the Cellular Structure by Combined Planar Laser-Induced Fluorescence and Rayleigh Scattering

M Ali Cherif, SB Rojas Chavez, KP Chatelain… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
This study investigates the structure of the detonation front in a stoichiometric H2-air mixture
(2H2-O2-3.76 N2), seeded with 2000 ppm of NO, at 25 kPa and 293 K, for two channel …

[PDF][PDF] Simultaneous Visualization of Induction and Reaction Zones by Planar Laser Induced Fluorescence in Hydrogen Detonations

SBR Chavez, KP Chatelain, M Alicherif… - 29th ICDERS …, 2023 - icders.org
Detonation waves have been studied for more than seventy years [1], using techniques such
as schlieren or shadowgraph, and CH* or OH* chemiluminescence for visualization of the …

[PDF][PDF] Experimental and Numerical Comparison of Weakly Unstable Detonation using Planar Laser-Induced Fluorescence of Nitric Oxide Imaging

V Sankar, KP Chatelain, J Melguizo-Gavilanes… - 29th ICDERS, SNU …, 2023 - icders.org
Detonations are intense supersonic reactions where the combustion wave propagates at the
O (km/s) relative to the unburned fresh gas, accompanied by a pressure rise of 20− 50 bar …