Transition Behavior of Single and Twin Flickering Jet-Flames

抄録

This paper describes dynamic transition behavior of single buoyant flames and interacting twin jet flames subjected by buoyancy. Single buoyant jet flame exhibits two modes of periodic flame behaviors; such as (axisymmetric) varicose and (asymmetric) sinuous modes. Similar behavior is observed when twin jet flames interacted at certain separation distance. Experimental observation of time-sequential imaging of thermal layer during this periodic event was made and data analysis of flame dynamics was proceeded to summarize their behavior and find the key parameter to determine its characteristics. The potential mechanism to lead the mode transition is discussed.