Experimental Study for Reducing Tip Noise Generated from Trailing-Edge Flap of A Supersonic Configuration

摘要：

Noise reduction is an import problem to realize the next generation supersonic transport to achieve environmentally acceptable noise level at take-off and landing. The objective of this study is to reduce the flap tip noise by extending trailing-edge flap in spanwise. Noise measurement was conducted to investigate effects of flap tip devices on noise reduction for a supersonic civil transport configuration. Noise sources of airframe noise were identified by using a phased—array microphone measurement system, and it showed that the airframe noise mainly contributed from tips of the leadingedge and trailing-edge flaps. Results showed that noise levels were reduced by flap tip devices, and effects of noise reduction were confirmed

关键词： supersonic transport flap noise aerodynamics

作者: Zhong Lei Hiroki Ura Masayoshi Noguchi

作者单位: Department of Mechanical Systems Engineering, Tokyo University of Science, Suwa, Nagano- ken391-0292 Aviation Program Group, Japan Aerospace Exploration Agency, Tokyo 181- 0015, Japan Aviation Program Group, Japan Aerospace Exploration Agency,Tokyo 181- 0015, Japan

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 255-259

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）