期刊
COMBUSTION THEORY AND MODELLING
卷 22, 期 5, 页码 921-938出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13647830.2018.1465598
关键词
flame-wall interaction; premixed turbulent combustion; strain rate; wall heat flux
资金
- National Science Foundation of China (NSFC) [11611130099]
- NSFC China
- Engineering and Physical Sciences Research Council (EPSRC) [EP/K025163/1, EP/P022286/1, 91441116]
- Sino-French (NSFC-CNRS) initiatives
- PRC 2016-2018 LATUMAR Turbulence lagrangi-enne: etudes numeriques et applications environnementales marines, Centre National de la Researche Scientifique (CNRS), France)
- EPSRC [EP/K025163/1, EP/P022286/1] Funding Source: UKRI
Flame-wall interaction (FWI) in premixed turbulent combustion has been analysed based on a counter-flow like configuration at the statistically stationary state. For the present configuration, the two FWI sub-zones, i.e the influence zone and the quenching zone, can be identified from the DNS results. Detailed analysis of the important quantities, such as the flame temperature, flame-wall distance, wall heat flux, flame curvature and dilatation (including the flame normal and tangential strain rates), and some orientation relations between the flame normal and the principal strain rate directions, have been reported, together with the physical explanations. All these statistical results are determined by the relative strengths of the wall heat flux, thermal expansion and the flame-turbulence interaction.
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