Effect of Flame-Wall Interaction on Local Heat Release of Methane and DME Combustion in a Side-Wall Quenching Geometry

This paper is focused on the characterization of local heat release rate and its correlation with flame structures under atmospheric conditions in a side-wall quenching geometry. The influence of different wall temperatures ranging from 330 K to 670 K is compared for stoichiometric and lean ( ϕ  = 1...

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Bibliographic Details
Published in:Flow, turbulence and combustion turbulence and combustion, 2020-04, Vol.104 (4), p.1029-1046
Main Authors: Kosaka, Hidemasa, Zentgraf, Florian, Scholtissek, Arne, Hasse, Christian, Dreizler, Andreas
Format: Article
Language:English
Subjects:
Aerodynamics
Automotive Engineering
Configurations
Curvature
Dimethyl ether
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Flame propagation
Flames
Fluid- and Aerodynamics
Heat
Heat and Mass Transfer
Heat release rate
Hydroxyl radicals
Methane
Planar laser induced fluorescence
Premixed flames
Quenching
Turbulent flames
Wall temperature
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Summary:This paper is focused on the characterization of local heat release rate and its correlation with flame structures under atmospheric conditions in a side-wall quenching geometry. The influence of different wall temperatures ranging from 330 K to 670 K is compared for stoichiometric and lean ( ϕ  = 1.0 and 0.83) methane/air as well as dimethyl ether (DME)/air flames. Simultaneous formaldehyde (CH 2 O) and hydroxyl radical (OH) planar laser-induced fluorescence (PLIF) is used to determine relative local heat release rates (HRRs). Based on the resulting relative HRR distributions, flame front positions are determined and flame curvatures are evaluated. In the laminar flame configuration, for both fuel types at wall-distances y  
ISSN:1386-6184
1573-1987
DOI:10.1007/s10494-019-00090-4