Modelling cellular structure of detonation waves in hydrogen-air mixtures

NN Smirnov, VF Nikitin, EV Mikhalchenko… - International Journal of …, 2024 - Elsevier
The paper presents the results of two-dimensional simulations of the cellular structure of a
detonation wave in a stoichiometric mixture of hydrogen with air. The dependence on …

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 …

[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 …

Evaluating the effect of ignition energy on gaseous hydrogen–oxygen detonations

RK Singh, A Dahake, CK Yadav, AV Singh - International Journal of …, 2024 - Elsevier
The effect of ignition energy on the cellular structure of hydrogen-oxygen and hydrogen-
oxygen-argon detonations was investigated experimentally over a range of initial conditions …

Dimensional analysis and simplified modeling for the cellular structure of premixed gas-phase detonation numerical simulations with single-step kinetics

N Zadok, SK Oruganti, MM Alves, Y Kozak - Combustion and Flame, 2023 - Elsevier
The current study presents a new simplified model for predicting the detonation cell
dimensions obtained by multidimensional gas-phase detonation numerical simulations …

[HTML][HTML] Evaluation of chemical kinetic models for simulations of hydrogen detonations by comparison with experimental data

V Sankar, KP Chatelain, DA Lacoste - Applications in Energy and …, 2025 - Elsevier
Two-dimensional numerical simulations of a weakly unstable detonation mixture 2 H 2+ O
2+ 3. 76 Ar at 20 kPa and 295 K were performed using our validated OpenFOAM solver …

From graph theory and geometric probabilities to a representative width for three-dimensional detonation cells

V Monnier, P Vidal, V Rodriguez, R Zitoun - Combustion and Flame, 2023 - Elsevier
We present a model for predicting a representative width for the three-dimensional irregular
patterns observed on the front views of cellular detonation fronts in reactive gases. Its …

A Machine Learning Based Approach for Statistical Analysis of Detonation Cells from Soot Foils

V Sharma, M Ullman, V Raman - arXiv preprint arXiv:2409.06466, 2024 - arxiv.org
This study presents a novel algorithm based on machine learning (ML) for the precise
segmentation and measurement of detonation cells from soot foil images, addressing the …

DDT run-up distance in an obstructed tube

SH Mehr, G Ciccarelli - Combustion and Flame, 2023 - Elsevier
Self-luminous high-speed photography was used to study flame acceleration and
deflagration-to-detonation transition (DDT) in a clear polycarbonate round tube equipped …

Comparing shock-attached and lab frames of reference for numerical simulations of two-dimensional channel detonations

R Suryanarayan, R Dushe, S Yang - AIAA SCITECH 2025 Forum, 2025 - arc.aiaa.org
Numerical simulation of two-dimensional detonations in channels using detailed chemistry
presents a formidable computational challenge with stiff requirements on resolution and time …