Effects of differential diffusion on hydrogen flame kernel development under engine conditions
The early flame kernel development in spark ignition engines is crucial for engine
performance. For non-unity-Lewis-number mixtures, it can be significantly influenced by …
performance. For non-unity-Lewis-number mixtures, it can be significantly influenced by …
[HTML][HTML] Applying physics-informed enhanced super-resolution generative adversarial networks to turbulent premixed combustion and engine-like flame kernel direct …
M Bode, M Gauding, D Goeb, T Falkenstein… - Proceedings of the …, 2023 - Elsevier
Abstract Models for finite-rate-chemistry in underresolved flows still pose one of the main
challenges for predictive simulations of complex configurations. The problem gets even …
challenges for predictive simulations of complex configurations. The problem gets even …
Evolution of local flame displacement speeds in turbulence
HL Dave, S Chaudhuri - Journal of Fluid Mechanics, 2020 - cambridge.org
In this study, we assess the veracity of models for density-weighted local flame displacement
speed of turbulent premixed flames. It will be shown that a combination of two models, one …
speed of turbulent premixed flames. It will be shown that a combination of two models, one …
Effects of turbulence on variations in early development of hydrogen and iso-octane flame kernels under engine conditions
The understanding and prediction of the early development of flame kernels are of high
practical importance for the robust relight of aviation gas turbines and the control of cycle-to …
practical importance for the robust relight of aviation gas turbines and the control of cycle-to …
Flamelet modeling of forced ignition and flame propagation in hydrogen-air mixtures
Modeling hydrogen-air flames is challenging for several reasons. Due to its high diffusivity
and reactivity, the combustion properties of hydrogen are substantially different from …
and reactivity, the combustion properties of hydrogen are substantially different from …
Effects of electrodes and imposed flow on forced ignition in laminar premixed hydrogen/air mixtures with large Lewis number
Compared to quiescent premixed reactants, forced ignition of flowing/turbulent premixed
reactants is expected to be more difficult because of increased dissipation of the deposited …
reactants is expected to be more difficult because of increased dissipation of the deposited …
On the flow-facilitated ignition in a mixture with low Lewis number
The imposed laminar flow has been shown to facilitate ignition under certain conditions in
our previous work (Chen et al. 2023). Such flow-facilitated ignition (FFI) was observed only …
our previous work (Chen et al. 2023). Such flow-facilitated ignition (FFI) was observed only …
Local flame displacement speeds of hydrogen-air premixed flames in moderate to intense turbulence
Comprehensive knowledge of local flame displacement speed, S d, in turbulent premixed
flames is crucial towards the design and development of hydrogen fuelled next-generation …
flames is crucial towards the design and development of hydrogen fuelled next-generation …
Analysis of flame curvature evolution in a turbulent premixed bluff body burner
L Cifuentes, C Dopazo, A Sandeep, N Chakraborty… - Physics of …, 2018 - pubs.aip.org
The physical mechanisms responsible for flame curvature evolution of a methane-air
premixed flame attached to a bluff-body burner have been investigated using a high-fidelity …
premixed flame attached to a bluff-body burner have been investigated using a high-fidelity …
In-situ flame particle tracking based on barycentric coordinates for studying local flame dynamics in pulsating Bunsen flames
Flame particles (FP) are massless, virtual particles which follow material points on the flame
surface. This work presents a tracking algorithm for FPs which utilizes barycentric …
surface. This work presents a tracking algorithm for FPs which utilizes barycentric …