叶片扩压器内部非定常流动的PIV测量  

PIV Measurement of Unsteady Flow within Blade Diffusor

作　　者：闻苏平[1] 张义云[1] 张楚华[1] 王学军[2] 孙玉山[2] 张勇[2] 马新民[2] 

机构地区：[1]西安交通大学,西安市710049 [2]沈阳鼓风机(集团)有限公司

出　　处：《风机技术》2004年第4期1-4,共4页Chinese Journal of Turbomachinery

摘　　要：通过试验和对数据的进一步处理 ,获得了叶片扩压器内部非定常流场的分布情况。详细分析了叶片扩压器内部的非定常流动现象和流动规律。通过研究发现在叶片扩压器进口处 ,高速区位于扩压器流道的左下角 ,低速区位于扩压器流道的右上角。随着流动的发展 ,流道左上角逐渐演变为一个大范围的高速区。The distribution of unsteady flow within blade diffusor is obtained by testing and further proccessing data. The phenomenon and law of unsteady flow in blade diffusor is analyzed in detail. It is found at the inlet of blade diffusor that high speed area is located in the lower left-hand corner of diffusor flow passage and low speed area is located in the upper right-hand of diffusor flow passage. The high speed area of a wide range will become in the upper left-hand of the flow passage with the development of flow.

关 键 词：内部 区位 进口 发展 分布情况 范围 流动 叶片扩压器 流道 PIV 

分 类 号：TH452[机械工程—机械制造及自动化]