Abstract
A jet into a counter flowing uniform stream is very important to clear flow in a combustor. There are many researches in round jet and two-dimensional jet. In two-dimensional jet into a counter flowing uniform stream, we grouped into three classes, attached flow, puffing flow and flittering flow. An annular jet has both nature of a round jet and two-dimensional jet. So the annular jet into the counter flowing uniform streams has wide applications in industrial world. In this paper, the flow fields are classified by means of visualization by schlieren method. And we discuss the characteristics of the flow fields.
