实验流体力学Issue(6)：98-103,6.DOI:10.11729/syltlx20140021
采用长细管法进行脉动压力转捩探测的实验研究
Experimental study on pressure fluctuation sensor-based diagnostic for boundary layer transition with long-fine tubing system
高永卫 1黄鹏 1朱奇亮 1梁撑刚1
作者信息
- 1. 西北工业大学 翼型研究中心，西安 710072
- 折叠
摘要
Abstract
Low speed flow transition zone of boundary layer can be detected by means of pres-sure fluctuation measurement over the surface of the test model.It is convenient that fluctuation pressure transducers are arranged outside the model through long-fine tubing system.The distor-tion of pressure signal caused by the tubing system should be recognized.Under the static condi-tion(V= 0m/s),the authors measured a series of sound signals over an airfoil model surface through the tubing system.The sound signal source come from a speaker actuated by a signal generation.The model chord length is 0.8m and the model span is 1.6m in length.The tubes are about 1.2m long and their inner diameters are 0.8mm.The tubing system has proved to be able to transmit the characteristics of the surface pressure fluctuation for the transition detection.Un-der the condition of section flow velocity V= 30m/s,signals of the surface pressure fluctuation transmitted along the chord of the model were measured and the boundary layer transition zones were located.This experiment was conducted in NF-3 low-speed wind tunnel of Northwestern Polytechnical University.The authors suggest that the pressure fluctuation transition diagnostic method with long-fine tubing system is promising and further researches should be carried out.关键词
边界层/转捩探测/脉动压力/长细管/风洞实验Key words
boundary layer/transition diagnostic/pressure fluctuation/long-fine tubing sys-tem/wind tunnel experiment分类
数理科学引用本文复制引用
高永卫,黄鹏,朱奇亮,梁撑刚..采用长细管法进行脉动压力转捩探测的实验研究[J].实验流体力学,2014,(6):98-103,6.
