Dynamics and Stability of Flames

本研究计划着重研究燃烧的非稳定非平面模式。该程序的目的是研究优先扩散、热膨胀、拉伸、火焰前缘曲率、粘度和热损失对极限的影响，以及产生、抑制和维持火焰前缘波纹的机制。研究了三类问题：(1)燃烧器附着式火焰，(2)驻点流和逆流结构的拉伸火焰，(3)球形扩张火焰。所采用的方法有渐近法和摄动法，以及稳定性和分叉理论方法。

This research program emphasizes the study of unsteady nonplanar modes of combustion. The objective of the program is to investigate the effects of preferential diffusion, thermal expansion, stretching, flame front curvature, viscosity, and heat loss of the limites and mechanisms for the generation, suppression, and sustenance of flame front corrugations. Three classes of problems are examined: (1) burner attached flames, (2) stretched flames in stagnation point flow and counterflow configurations, and (3) spherically expanding flames. The methods employed are asymptotic and perturbation techniques as well as methods of stability and bifurcation theory.