| 二维加糙明渠紊流结构的试验研究 |
| |
| 引用本文： | 卞华,李福田,刘长辉,蒋慧敏.二维加糙明渠紊流结构的试验研究[J].河海大学学报(自然科学版),1998,26(1):93-98. |
| |
| 作者姓名： | 卞华 李福田 刘长辉 蒋慧敏 |
| |
| 作者单位： | 河海大学水利水电工程学院 |
| |
| 摘 要： | 采用丹麦产二维激光流速仪对二维加糙明渠紊流进行了试验，获得了比较全面的紊动结构及阻力资料，并系统地分析了试验成果。着重探讨了二维粗糙床面的理论基面、当量糙率值的确定以及粗糙对时均结构和脉动结构的影响等问题。
|
| 关 键 词： | 二维加糙 明渠 当量糙率 湍流结构 试验研究 |
| 修稿时间： | 2004/11/11 0:00:00 |
Investigation on Turbulent Structures in Two Dimensional Strip Roughness Flume |
| |
| Bian Hua,Li Futian,Liu Changhui,Jiang Huiming.Investigation on Turbulent Structures in Two Dimensional Strip Roughness Flume[J].Journal of Hohai University (Natural Sciences ),1998,26(1):93-98. |
| |
| Authors: | Bian Hua Li Futian Liu Changhui Jiang Huiming |
| |
| Abstract: | With the help of 2 D laser doppler anemometry,experiments of turbulent flow are made in a two dimensional strip roughness flume.The turbulence structures and the resistance data are given,and the test results are systematically analysed.In addition,some problems are discussed emphatically,such as the theoretical position of datum plane,equivalent sand grain roughness size,and the influence of roughness elements on the structural characteristics of time averaged velocity and fluctuation velocity. |
| |
| Keywords: | laser doppler anemometry two dimensional strip roughness flume time averaged velocity fluctuation velocity theoretical position of datum plane equivalent sand grain roughners |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《河海大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《河海大学学报(自然科学版)》下载免费的PDF全文 |
