Exploring the controlling mechanisms for gradient evolution in unsteady detonation flows

Q Xie, Y Liu, Y Chen, Z Ren - Physics of Fluids, 2022 - pubs.aip.org
Proper characterization of the transient interaction between shock front motion and chemical
energy release is the key for further understanding of unsteady detonation dynamics. We …

Mechanisms of detonation formation due to a temperature gradient

AK Kapila, DW Schwendeman, JJ Quirk… - … Theory and Modelling, 2002 - iopscience.iop.org
Emergence of a detonation in a homogeneous, exothermically reacting medium can be
deemed to occur in two phases. The first phase processes the medium so as to create …

Effects of disturbance on detonation initiation in mixture

Y Wang, W Han, R Deiterding, Z Chen - Physical Review Fluids, 2018 - APS
Detonation initiation has been extensively investigated in the past several decades. In the
literature, there are many studies on detonation initiation using a large amount of blast …

Modeling flows with curved detonation waves

R Menikoff, KS Lackner, BG Bukiet - Combustion and flame, 1996 - Elsevier
The nonzero width of a curved detonation front has a significant effect on its propagation.
Physically, the curvature effect is a small but important correction. In numerical simulations …

Shock‐to‐detonation transition: A model problem

JB Bdzil, AK Kapila - Physics of Fluids A: Fluid Dynamics, 1992 - pubs.aip.org
The process by which a trigger ignited shockless weak detonation is transformed into a
classical Zeldovich–von Neumann–Doering (ZND) detonation as the trigger wave …

Exploring the chemical kinetic effects on the direct detonation initiation in H2-O2-Ar mixtures

Y Liu, Y Chen, Q Xie, X Su, Z Ren… - Combustion Theory and …, 2024 - Taylor & Francis
Chemical kinetics plays an important role in the direct detonation initiation (DDI) of various
combustible mixtures. However, its impact on detonation dynamics has rarely been studied …

[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 …

Effect of equivalence ratio fluctuations on planar detonation discontinuities

A Cuadra, C Huete, M Vera - Journal of Fluid Mechanics, 2020 - cambridge.org
We propose a linear asymptotic theory to describe the propagation of planar detonation
fronts through heterogeneous mixtures of reactive gases consisting of random fluctuations in …

Theory of direct initiation of gaseous detonations and comparison with experiment

AR Kasimov, DS Stewart - TAM Reports 1043, 2004 - ideals.illinois.edu
In this work we discuss the application of an evolution equation that we have developed for
the dynamics of a slowly evolving weakly-curved detonation to a problem of direct …

[图书][B] The role of instability in gaseous detonation

JM Austin - 2003 - search.proquest.com
In detonation, the coupling between fluid dynamics and chemical energy release is critical.
The reaction rate behind the shock front is extremely sensitive to temperature perturbations …