Premixed flames subjected to extreme turbulence: Some questions and recent answers
It has been predicted that several changes will occur when premixed flames are subjected to
the extreme levels of turbulence that can be found in practical combustors. This paper is a …
the extreme levels of turbulence that can be found in practical combustors. This paper is a …
Recent developments in DNS of turbulent combustion
P Domingo, L Vervisch - Proceedings of the Combustion Institute, 2023 - Elsevier
The simulation of turbulent flames fully resolving the smallest flow scales and the thinnest
reaction zones goes along with specific requirements, which are discussed from …
reaction zones goes along with specific requirements, which are discussed from …
Influence of thermal expansion on fluid dynamics of turbulent premixed combustion and its modelling implications
N Chakraborty - Flow, Turbulence and Combustion, 2021 - Springer
The purpose of this paper is to demonstrate the effects of thermal expansion, as a result of
heat release arising from exothermic chemical reactions, on the underlying turbulent fluid …
heat release arising from exothermic chemical reactions, on the underlying turbulent fluid …
Prediction of local extinctions in piloted jet flames with inhomogeneous inlets using unstrained flamelets
Multi-regime turbulent combustion modelling remains challenging and is explored with
occurrence of local extinction in this study. A partially premixed model based on unstrained …
occurrence of local extinction in this study. A partially premixed model based on unstrained …
Insights into the bending effect in premixed turbulent combustion using the flame surface density transport
The bending effect of turbulent flame speed variation (ie, the deviation from the linear
increase of flame speed with increasing root-mean-square turbulent velocity fluctuation) has …
increase of flame speed with increasing root-mean-square turbulent velocity fluctuation) has …
The influence of large eddies on the structure of turbulent premixed flames characterized with stereo-PIV and multi-species PLIF at 20 kHz
Interactions between turbulent structures (eddies) and premixed flame fronts were
characterized with simultaneous CH 2 O-/OH-PLIF and stereo-PIV at high framing rate (20 …
characterized with simultaneous CH 2 O-/OH-PLIF and stereo-PIV at high framing rate (20 …
Lean flame root dynamics in a gas turbine model combustor
ABSTRACT A swirl-stabilised flame close to blow-off conditions in a gas turbine model
combustor is investigated using large eddy simulation. The sub-grid combustion is modelled …
combustor is investigated using large eddy simulation. The sub-grid combustion is modelled …
Multi-species PLIF study of the structures of turbulent premixed methane/air jet flames in the flamelet and thin-reaction zones regimes
Simultaneously planar laser-induced fluorescence (PLIF) measurements of OH, CH, CH 2 O
and toluene are carried out to investigate the structures of turbulent premixed methane/air jet …
and toluene are carried out to investigate the structures of turbulent premixed methane/air jet …
Effects of turbulent length scale on the bending effect of turbulent burning velocity in premixed turbulent combustion
The effects of turbulent integral length scale to flame thickness ratio on the bending effect of
turbulent burning velocity variation have been analysed based on a three-dimensional …
turbulent burning velocity variation have been analysed based on a three-dimensional …
The response of small-scale shear layers to perturbations in turbulence
T Watanabe, K Nagata - Journal of Fluid Mechanics, 2023 - cambridge.org
The perturbation response of small-scale shear layers in turbulence is investigated with
direct numerical simulations (DNS). The analysis of shear layers in isotropic turbulence …
direct numerical simulations (DNS). The analysis of shear layers in isotropic turbulence …