non-premixed turbulent flame
Simulations of edge flame propagation in turbulent non premixed jets
... the flame does not allow a clear distinction between rich and lean premixed fronts or of a diffusion flame and as such it may correspond to the triple point of a tri- brachial ...axial ...
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Direct Numerical Simulation of Premixed Flame Kernel Ignition of Hydrogen-Air Mixtures under Turbulent Conditions.
... uses non-reflecting Navier- Stokes Characteristic Boundary Conditions (NSCBC) ...of turbulent reactive ...place, non-reflecting outflow condition is used in all directions, allowing for the expansion ...
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An Experimental Study of Flame Stabilization Mechanisms in Turbulent Non-premixed Jet Flames Under Autoignitive Conditions.
... of turbulent non-premixed jet flames in a coflowing stream of combustion products which serve as the oxidizer, creating a high temperature, low oxygen ...in flame stabilization. Three distinct ...
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Local Flame Stabilization Mechanisms in Turbulent Non-Premixed Jet Flames in Vitiated Coflow by Particle Image Velocimetry.
... 1) Background subtraction: PIV images are always associated with background noise signal despite the utmost care taken to prevent any background signal from sneaking into recordings. The major source of background ...
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Prediction of turbulent non-premixed hydrogen flames using second-order conditional moment closure modelling
... display an expected trend in results. The correction terms enhance the slower three-body recombination reactions, resulting in lower rates of NO formation at upstream locations. However, in the majority of cases, the ...
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Eddy dissipation model for modeling of turbulent non-premixed combustion with radiation effect using openfoam
... the flame type and chemistry speed ...each flame type; premixed, non-premixed or partially-premixed and there are models that can be used for different types of flames with minor ...
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Towards a priori Models for Differential Diffusion in Turbulent Non Premixed Flames
... constant non-unity Lewis number ap- proach in the description of molecular mixing in laminar and turbulent flames is systematically assessed for a wide range of configurations of practical ...ble, ...
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An Investigation of Premixed Flame Propagation in a Straight Rectangular Duct
... a non-reacting scalar and the G-equation is a premixed ame-front tracking model based on kinematics ...of turbulent premixed ames is the absence of chemistry source terms in the transport ...
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Numerical modelling of vented lean hydrogen–air deflagrations using HyFOAM
... were non-slip, adiabatic walls for the chamber walls and the ground as a conservative ...with premixed fuel mixture initialized in the chamber ...the turbulent root mean square velocity u’= ...
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Modelling of non-premixed turbulent combustion of hydrogen using conditional moment closure method
... modelling. Turbulent combustion is divided into two classes depending on when the fuel is mixed with the oxidizer: premixed and ...non-premixed. Premixed combustion is usually modelled ...
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On the Suitability of Turbulence Models for the Prediction of Velocity and Temperature Distributions in Methane Non-Premixed Flame
... of turbulent flows basically engages a full numerical solution of the time dependent Navier-Stokes equations and accommodates all time and length scales of ...the turbulent motions are resolved in the ...
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Investigation of Turbulent Lifted Jet Flame Stabilization using Experimental Methods and Simulations.
... for flame stabilization have been available for some time in the literature, there is little consensus on the choice of the appropriate combustion models that can reasonably predict the structure and dynamics of ...
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Global Features of Flame Stabilization in Turbulent Non-premixed Jet Flames in Vitiated Coflow.
... lean premixed burners, afterburners, gas turbines, homogeneous charge compression ignition (HCCI) engines, to name a few – has been the result of several years of research, and there is a wealth of ongoing ...
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The Regime Diagram for Premixed Flame Kernel-Vortex Interactions - Revisited.
... of turbulent flames may not be sustained; but, would that transition evolve into a distributed reaction regime or to a fundamentally different mode? For non- premixed flames, there is evidence of ...
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Comparative study of non-premixed and partially-premixed combustion simulations in a realistic Tay model combustor
... used non-premixed with partially premixed combustion ...for turbulent combustion ...The flame front propagation in the partially premixed combustion model is tracked by solving a ...
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LES investigation of two frequency effects on acoustically forced premixed flame
... The non-linear response of turbulent premixed flame to external acoustic forcing plays a dominant role in the development of combustion ...the non-linear responses and interactions of ...
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Circle grid fractal plate as a turbulent generator for premixed flame: an overview
... decided that using the fractal grids as higher as three times turbulence intensities produced than classical non fractal grids [15]. They also concluded that their space filling fractal square grids generated a ...
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Development of a video signal based non invasive method for measurement of turbulent flame temperature
... in non-contact type temperature measurement for turbulent ...Average flame features for a small time period are compared with actual flame temperature to establish a ...for flame ...
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Impact of non-central vents on vented explosion overpressures
... emerging flame and the external explosion increases in overpressure with the vent flow velocity (Harrison and Eyre, ...The turbulent flame and the turbulent level of the external explosion is ...
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Investigation of Combustion Characteristics of Premixed Propane/Air Flame
... initiated flame is a result of combustion reaction which can propagate sub sonically through combustion ...the flame relative to the unburned gas is the important ...the flame front. This ...
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