Triple Flame and Lifted Flame

Abstract

The aspects of triple (or tribrachial) flames are briefly surveyed by showing our studies and reports. The triple flames consist of a lean and a rich premixed flame branches with a trailing diffusion flame branch. The three branches intersect at the triple points. The flames could play important role of lifted flames, local extinction and so on. First, the flame structure is explained using our results of numerical simulation. Next, experimental results of a lifted flame in a triple port burner are examined. Especially, a unique behavior of flip-flop between inner and outer flames is introduced.