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김후중(Hoojoong Kim),김용모(Yongmo Kim),윤명원(Myoungwon Yoon) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
The present study has been focused on numerically investigating the flame structure, flame liftoff and stabilization<br/> in the partially premixed turbulent lifted jet flames. Since the lifted jet flames have the partially premixed nature in<br/> the flow region between nozzle exit and flame base, level set approach are applied to simulate the turbulent partially<br/> premixed lifted jet flames for various fuel jet velocities and co-flow velocities. The flame stabilization mechanism<br/> and the flame structure near flame base are presented in detail. The predicted liftoff heights are compared with the<br/> measured ones.
Damkohler 수가 비예혼합 CO/H₂/N₂난류 화염장에서의 초과평형농도 및 화염구조에 미치는 영향
김군홍(Gunhong Kim),김용모(Yongmo Kim),윤명원(Myoungwon Yoon) 한국자동차공학회 2002 한국 자동차공학회논문집 Vol.10 No.6
The RPV(Reaction Progress Variable) combustion model has been applied to numerically investigate the effects of Damkh ler number on the superequilibrium concentration and flame structure in the nonpremixed turbulent flames. Computations are performed for the two turbulent jet flames of CO/H /N <br/> (40/30/30 volume percent) having the same jet Reynolds number of 16,700 but different nozzle diameters(4.58mm and 7.72mm). The detailed discussions have been made for the interaction between fluid dynamics and chemistry in the flame field.<br/>