| 基于耗散函数的低速扩压叶栅损失机理探讨 |
| |
| 引用本文： | 刘华坪,陈焕龙,杨晓光,陈浮.基于耗散函数的低速扩压叶栅损失机理探讨[J].航空动力学报,2011,26(2):289-296. |
| |
| 作者姓名： | 刘华坪 陈焕龙 杨晓光 陈浮 |
| |
| 作者单位： | 哈尔滨工业大学,能源科学与工程学院,推进理论与技术研究所,哈尔滨,150001 |
| |
| 摘 要： | 推导了含耗散函数项的总压输运方程,利用总压损失,熵增,耗散函数等参数分析某扩压叶栅流动与损失特性,探讨其损失产生机理.研究表明:栅内损失主要来源于叶片前缘附近、流道表面、尾迹区、分离区与主流交界区的流动耗散;分离区仅是高总压损失和高熵值的低能流体聚集区,而非高损失来源区;通过减小分离区以提高叶栅件能的控制方法本质是通过...
|
| 关 键 词： | 扩压叶栅 流动分离 损失来源 熵增 耗散函数 |
| 收稿时间： | 2009/12/18 0:00:00 |
| 修稿时间： | 2010/3/30 0:00:00 |
Study of loss mechanism in low speed compressor cascade using dissipation function |
| |
| LIU Hua-ping,CHEN Huan-long,YANG Xiao-guang and CHEN Fu.Study of loss mechanism in low speed compressor cascade using dissipation function[J].Journal of Aerospace Power,2011,26(2):289-296. |
| |
| Authors: | LIU Hua-ping CHEN Huan-long YANG Xiao-guang and CHEN Fu |
| |
| Institution: | LIU Hua-ping,CHEN Huan-long,YANG Xiao-guang,CHEN Fu(Institute of Propulsion Theory and Technology,School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China) |
| |
| Abstract: | The transport equation of total pressure containing dissipation functi on was derived.Through experimental and numerical studies of a low speed compres sor cascade,the characteristics of flow and loss distribution were discussed in detail,then the loss mechanism was obtained.The results show that:the high casca de loss originates from dissipation in the area near the blade leading edge,blad e and end wall surface,wakes,as well as the area between the separation and main stream.Moreover,the separation zone i... |
| |
| Keywords: | compressor cascade flow separation loss source entropy increase |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
