1. 제 목 : Flame edges in a counterflow

2. 연 사 : Ron Thatcher
Department of Mathematics, Manchester UK.

3. 일 시 : 2005년 5월 18일 수요일 오후 4시~

4. 장 소 : 서울대학교 신공학관 301동 1512호

5. 내 용

In a recent comprehensive review article entitled Edge-flames, John Buckmaster [1] describes the nature of edge flames, where they arise and their importance in the study of combustion. Edge flames, or as we call them flame edges, give us information about how flames propagate. This talk will discuss a numerical study of flames edges in a counterflow describing the range of phenomena that can arise. We shall consider the results in [2] concerning flame edges that breaks up into cellular flames and isolated flame tubes when the Lewis number of the fuel is less than one. We shall also describe the results in [3] on multiple propagations speeds of flame edges for Lewis numbers greater than one. Finally we shall discuss some recent work done in collaboration with Joel Daou extending his work in [4] on flame edges in the presence of heat loss.

References
[1] Buckmaster, J.(2002) Edges-flames. Progress in Energy and Combustion Science 28.
435-475.
[2] Thatcher, R.W., Dold, J.W. (2000). Edges of Flames that do not exist: flams-edge
dynamics in a non-premixed counterflow. Combustion Theory and Modelling 4. 435-
457.
[3] Thatcher, R.W., Omen-Arancibia, A.A. Multiple speeds of edge flame propagation for
Lewis numbers above one. Submitted to CTM in October 2004.
[4] Doou, R., Daou, J., Dold, J.W. (2003) Effect of heat-loss on flame edges in a premixed
counterflow. Combistion Theory and Modelling 7. 221-242.


6. 문의 : 기계항공공학부 정석호 교수(☏ 880-7114)