| 闸下海漫柔性加糙体消能防冲机理试验 |
| |
| 引用本文： | 史国庆,文恒,牟献友.闸下海漫柔性加糙体消能防冲机理试验[J].水利水电科技进展,2011,31(5):49-52. |
| |
| 作者姓名： | 史国庆 文恒 牟献友 |
| |
| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特,010018 |
| |
| 基金项目： | 国家自然科学基金(50169001) |
| |
| 摘 要： | 通过室内水工模型试验,量测了采用废旧轮胎加糙后三维流速的分布。结果表明:加糙后近底流速明显降低,但整个断面的平均流速近似相等;随着轮胎排数的增加,水流紊流强度平均值增大,附加切应力增大,流体质点间相互混掺的情况加剧,从而使消能效率得以提高。
|
| 关 键 词： | 水闸 消能防冲 海漫加糙 废旧轮胎 紊流强度 附加切应力 |
| 修稿时间： | 2011/10/20 0:00:00 |
Experimental study on mechanism of energy dissipation and erosion control of aprons for sluices |
| |
| SHI Guo-qing,WEN Heng,MOU Xian-you.Experimental study on mechanism of energy dissipation and erosion control of aprons for sluices[J].Advances in Science and Technology of Water Resources,2011,31(5):49-52. |
| |
| Authors: | SHI Guo-qing WEN Heng MOU Xian-you |
| |
| Affiliation: | SHI Guo-qing,WEN Heng,MOU Xian-you(Water Conservancy and Civil Engineering College,Inner Mongolia Agricultural University,Hohhot 010018,China) |
| |
| Abstract: | Based on the laboratory hydraulic model tests,the distribution of three-dimensional velocity after raising the roughness of the aprons by means of scrap tires was measured.The results show that the bottom velocity of water obviously decreases and the average velocity of the whole cross-section is approximately equal.With the increase of the tires,the average turbulence intensity and the additional shear stress and the fluid mixing increase so as to improve the efficiency of energy dissipation. |
| |
| Keywords: | sluice energy dissipation and erosion control apron roughness improvement scrap tire turbulence intensity additional shear stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《水利水电科技进展》浏览原始摘要信息 |
|
点击此处可从《水利水电科技进展》下载全文 |
|
