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Investigation of Entrainment and its Effect on Flame Stabilization in a Turbulent High Karlovitz Number Premixed Jet Flame using Direct Numerical Simulation
The stabilization of high Karlovitz number (Ka) jet flames is challenging due to the strong mean shear, and the role of entrainment on high Ka flame...
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Analysis of Thermal Radiation Emitted from Partially Premixed Methane–Air Jet Flames
According to accident databases, severe accidents, usually leading to catastrophic events, have originated from 50% of registered jet fires. This...
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LES of Premixed Turbulent Combustion Using Filtered Tabulated Chemistry
The filtered tabulated chemistry (FTACLES) approach utilizes data from pre-tabulated explicitly filtered 1D flame profiles for closure of the...
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Multi-regime mixing modeling for local extinction and re-ignition in turbulent non-premixed flame by using LES/FDF method
Local extinction and re-ignition occur in turbulent non-premixed combustion when the Damköhler number is not large enough and the combustion is not...
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Large eddy simulation of turbulent partially premixed flames in oxy-fuel combustor under subcritical and supercritical conditions
A supercritical CO 2 -diluted oxy-fuel combustor was analyzed focusing on the flame structure and stability. A parametric study on the background...
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Implementation of the Filtered Turbulent Flame Model in Non-premixed Combustion Simulation
The interaction between flame and turbulence leads to challenging flame dynamics and modeling issues. In this work, a newly proposed filtered...
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A Priori Evaluation of the Laminar Flamelet Decomposition Model for Turbulent Premixed Flames using DNS Data
Laminar flamelet decomposition (LFD) is a dynamic approach for modelling sub-filter scale turbulence-chemistry interactions in Large-Eddy Simulations...
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Numerical Investigation on the Head-on Quenching (HoQ) of Laminar Premixed Lean to Stoichiometric Ammonia–Hydrogen-Air Flames
The Head-on Quenching (HoQ) of laminar premixed ammonia–hydrogen-air flames under lean to stoichiometric condition is numerical investigated....
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Effects of water droplet injection on turbulent premixed flame propagation: a direct numerical simulation investigation
The influence of water droplet injection on the propagation rate of statistically planar stoichiometric n-heptane-air flames has been analysed based...
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Numerical and Analytical Assessment of Finite Rate Chemistry Models for LES of Turbulent Premixed Flames
Different combustion models for large eddy simulation, including the quasi-laminar (QL), Eddy dissipation concept (EDC), and partially stirred...
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Flame Surface Density and Artificially Thickened Flame Combustion Models Applied to a Turbulent Partially-Premixed Flame
The Sydney Flame provides an excellent framework for systematic analysis of premixed, partially premixed and non-premixed methane/air combustion. It...
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Numerical Comparison of Turbulence-Chemistry Interactions Models with Radiation Effect for Non-premixed Flames: Sandia-E and DLR-B
This work shows the influence of turbulence-chemistry interactions (TCI) and radiation on temperature and species concentrations of turbulent...
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Extension of the Spectral Difference Method to Premixed Laminar and Turbulent Combustion
A Spectral Difference (SD) algorithm on tensor-product elements which solves the reacting compressible Navier–Stokes equations is presented. The...
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Structures of Laminar Lean Premixed H2/CH4/Air Polyhedral Flames: Effects of Flow Velocity, H2 Content and Equivalence Ratio
Polyhedral Bunsen flames, induced by hydrodynamic and thermo-diffusive instabilities, are characterized by periodic trough and cusp cellular...
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An experimental/numerical investigation of non-reacting turbulent flow in a piloted premixed Bunsen burner
AbstractIn this paper, an experimental study of the non-reacting turbulent flow field characteristics of a piloted premixed Bunsen burner designed...
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Combustion and Radiation Modeling of Non-premixed Turbulent DLR-A Flame
In this work, combustion and radiation models are employed to simulate a non-premixed turbulent DLR-A flame in OpenFOAM. In a DLR-A flame, the...
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Effect of Unsteadiness and Scalar Dissipation Models on Flamelet Modeling of Differential Molecular Diffusion in Turbulent Non-Premixed DNS Flames
Prediction of differential molecular diffusion remains a great challenge for flamelet modeling of turbulent non-premixed combustion. This work...
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Effects of Hydrogen Enrichment on Thermoacoustic and Helical Instabilities in Swirl Stabilised Partially Premixed Flames
The effects of hydrogen enrichment on flame and flow dynamics of a swirl-stabilised partially premixed methane-air flame are studied using large eddy...
