[HTML][HTML] Chapman–Jouguet deflagration criteria and compressibility dynamics of turbulent fast flames for turbulence-induced deflagration-to-detonation transition

H Chin, J Chambers, A Poludnenko, VN Gamezo… - Physics of …, 2023 - pubs.aip.org
This work characterizes the compressibility dynamics in turbulent fast flames for a range of
turbulent flame speeds. These turbulent fast flames experience increased effects of …

[HTML][HTML] Spontaneous runaway of fast turbulent flames for turbulence-induced deflagration-to-detonation transition

J Chambers, HM Chin, AY Poludnenko, VN Gamezo… - Physics of …, 2022 - pubs.aip.org
One of the fundamental mechanisms for detonation initiation is deflagration-to-detonation
transition (DDT). This research experimentally explores the runaway condition for highly …

The effects of flame generated turbulence for turbulent-induced deflagration to detonation transition

R Hytovick, C Rising, A Morales, T Genova… - Proceedings of the …, 2023 - Elsevier
The turbulent deflagration to detonation transition (DDT) process occurs when a subsonic
flame interacts with intense turbulence resulting in spontaneous acceleration and the onset …

Evidence of Pressure Build-up in H2-Air Fast Flames for Deflagration-to-Detonation

J Chambers, KA Ahmed, LR ONeill… - AIAA Scitech 2019 …, 2019 - arc.aiaa.org
To begin uncovering the unknown mechanisms driving the Deflagration-to-Detonation
Transition in largely unexplored environments, such as unbounded systems, a thorough …

Turbulent flame augmentation using a fluidic jet for Deflagration-to-Detonation

J Chambers, K Ahmed - Fuel, 2017 - Elsevier
Detonation is a high energetic mode of pressure gain combustion that exploits total pressure
rise to augment high flow momentum and thermodynamic efficiencies. Detonation is initiated …

Quantification of pressure gain in turbulent fast flames for deflagration-to-detonation

HM Chin, J Chambers, J Sosa, KA Ahmed - AIAA Scitech 2020 Forum, 2020 - arc.aiaa.org
The Deflagration-to-Detonation Transition is a complex process which involves shock
reflections, deflagrations, boundary layers and their interactions with each other. Within …

[HTML][HTML] The evolution of fast turbulent deflagrations to detonations

R Hytovick, J Chambers, H Chin, VN Gamezo… - Physics of …, 2023 - pubs.aip.org
We use advanced experimental techniques to explore turbulence-induced deflagration-to-
detonation transition (tDDT) in hydrogen–air mixtures. We analyze the full sequence of …

The evolution of pressure gain in turbulent fast flames

HM Chin, J Chambers, J Sosa, A Poludnenko… - Combustion and …, 2021 - Elsevier
This research quantifies the evolution of pressure for fast burning regimes characterized by
various degrees of compressibility and involving turbulent flames and shocks. The …

[PDF][PDF] The role of flame-generated turbulence in the deflagration-to-detonation transition

AY Poludnenko - 26th International Colloquium on the Dynamics of …, 2017 - icders.org
Despite decades of research, understanding of the basic physical mechanisms governing
the deflagration-todetonation (DDT) transition still remains largely elusive. Fundamentally …

Delineating the effects of ignition propensity and Markstein number on deflagration-to-detonation transition

N Dexter-Brown, J Jayachandran - Combustion and Flame, 2024 - Elsevier
Although the process through which a deflagration transitions to a detonation (DDT) has
been studied for over a century, it is not well-understood how the propensity for DDT varies …