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前体非对称涡高风速烟雾显示技术
引用本文:柏楠,邓学蓥,王延奎.前体非对称涡高风速烟雾显示技术[J].力学学报,2007,39(2):261-266.
作者姓名:柏楠  邓学蓥  王延奎
作者单位:北京航空航天大学流体力学重点实验室 北京航空航天大学流体所,100083 北京航空航天大学流体所,100083
基金项目:国家自然科学基金,航空基础科学基金
摘    要:通过在细长旋成体模型机身的不同位置设置出烟孔,使用新型发烟装置对模型注入雾化油 滴,采用激光片光法在常规风洞中高风速(60m/s)条件下得到清晰、完整而稳定的截面涡 结构图像. 并通过同状态标定法和等比例网格法发展了简易涡位定量测量技术,为前体非对 称涡Re数效应的研究提供了重要的技术平台.

关 键 词:高风速流场显示  定量测量  Re数效应  前体非对称涡  大迎角
文章编号:0459-1879(2007)02-0261-06
收稿时间:2006-06-14
修稿时间:2006-11-20

SMOG VISUALIZATION TECHNIQUE OF ASYMMETRIC VORTICES ON FOREBODY AT HIGH WIND SPEED
Bo Nan,Deng Xueying,Wang Yankui.SMOG VISUALIZATION TECHNIQUE OF ASYMMETRIC VORTICES ON FOREBODY AT HIGH WIND SPEED[J].chinese journal of theoretical and applied mechanics,2007,39(2):261-266.
Authors:Bo Nan  Deng Xueying  Wang Yankui
Affiliation:Key Laboratory of Fluid Mechanics of Ministry of Education, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
Abstract:We have obtained a clear, integrated and steady image of vortices at high wind speed (60 m/s) in the routine wind tunnel by setting a smoke orifice on the surface of the slender cylinder body and infusing the atomized oil with the new type of liquid droplet seeding generator. A simple technique is developed to measure the vortice position by calibrating at the same state and drawing grids in the same scale. It provides a useful technical platform for the research of Reynolds number effect on asymmetric vortices at a forebody.
Keywords:flow visualization at high wind speed  quantitative measurment  effect of Reynolds number  asymmetric vortices  high angle of attack
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