Application of the Rainbow Schlieren Method in Free Underexpanded Jets

摘要：

　　An experimental investigation into free underexpanded jets is described.In this paper the experiment took the axis-symmetry unexpended jets as the object,used the typical Z schlieren system and replaced the edge with rainbow filter.The rainbow schlieren method is used to obtain measurements in underexpanded jets with nozzle pressure ratios ranging from 2.97 to 19.80.Obtaining the result of that the influence of pressure ratio on jet structure.This paper provides an operation method in the concrete and some useful reference for the rainbow schlieren technique.

关键词： Measurement Rainbow Filter Rainbow Schlieren Free Underexpanded Jet

作者: Wentang Wu Yanji Hong Jifei Ye Guanlei Jiang

作者单位: State Key Laboratory of Laser Propulsion and Application,The Academy of Equipment,Huairou,Beijing 101416,China

会议类型: 国际会议

会议名称: 2012 2nd International conference on Machinery Electronics and Control Engineering (2012年第二届国际机械电子与控制工程会议(ICMECE 2012))

会议地点: 济南

会议语种:英文

页码: 750-753

在线出版日期: 2012-12-29（万方平台首次上网日期，不代表论文的发表时间）