IMECH-IR  > 非线性力学国家重点实验室
机舱条缝型风口模型射流场的HWA测量与分析
郭勇; 姚世勇; 姜楠
Source Publication第九届全国实验流体力学学术会议论文集(下册)
2013
Pages379-384
Conference Name第九届全国实验流体力学学术会议
Conference Date2013-07-06
Conference Place中国浙江杭州
Abstract使用高时间分辨率热线风速仪精细测量了两个模型舱(简化模型舱和七排座舱)条缝型送风1:3的射流流场。对两个模型流场沿流向、展向和法向变化的平均速度、湍流度、湍动能以及能谱进行了分析。平均速度的结果表明流场在近风口处沿展向具有明显的周期性,这种周期性在离开壁面一定流向距离后会消失,沿流向多条缝射流存在一定长度的速度核心区。湍流度以及湍动能的结果表明射流场脉动剧烈程度和湍流扩散发展规律,是各种尺度脉动成分叠加的结果。对能谱的分析揭示了惯性子区的存在,随着不断的发展,大尺度的能量在不断减少,通过惯性子区传递给小尺度结构并在更小尺度转化为热能。
Keyword条缝射流 热线测速技术 能谱 机舱模型
Departmentf
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48642
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
郭勇,姚世勇,姜楠. 机舱条缝型风口模型射流场的HWA测量与分析[C],2013:379-384.
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