前体非对称涡高风速烟雾显示技术  

SMOG VISUALIZATION TECHNIQUE OF ASYMMETRIC VORTICES ON FOREBODY AT HIGH WIND SPEED

作　　者：柏楠[1] 邓学蓥[1] 王延奎[1] 

机构地区：[1]北京航空航天大学流体力学教育部重点实验室,北京100083

出　　处：《力学学报》2007年第2期261-266,共6页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家自然科学基金(10432020和10172017);航空科学基金(02A51048)资助项目.~~

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．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.

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 

分 类 号：O353.5[理学—流体力学]