| 初生空化数比尺效应的修正 |
| |
| 引用本文： | 倪汉根.初生空化数比尺效应的修正[J].水利学报,1999,30(9):0028-0033. |
| |
| 作者姓名： | 倪汉根 |
| |
| 作者单位： | 大连理工大学大连 116024 |
| |
| 摘 要： | 在初生空化位置写出了随流运动的球泡动力方程，估计了方程各项在空化初生时的近似值；以现有的实测资料为依据，选择了能识别的气核失稳的临界半径Rc的大小；给出了原型初生空化数与模型初生空化数的简单关系式；列出了碧口水库孔板洞4个不同比尺减压模型的实测初生空化数，这些模型初生空化数的值相差很大，但由这4个模型初生空化数和本文给出的换算关系得到的原型初生空化数很接近，这原型初生空化数与原型观测结果定性一致。
|
| 关 键 词： | 初生空化 比尺效应 孔板 |
| 修稿时间： | 1999年4月23日 |
Correction of incipient cavitation number for scale effect |
| |
| Ni Hangen.Correction of incipient cavitation number for scale effect[J].Journal of Hydraulic Engineering,1999,30(9):0028-0033. |
| |
| Authors: | Ni Hangen |
| |
| Affiliation: | Dalian University of Technology |
| |
| Abstract: | Based on the dynamic equation of bubble, a simple relationship between incipient cavitaion number of prototype and model is established with the approximation of the terms in the equation taken into account. A typical radius of bubble during cavitation inception is determined according to the observation data. The relationship is verified by the model test results of a spillway tunnel with different scales. |
| |
| Keywords: | cavitation inception scale effect model test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水利学报》浏览原始摘要信息 |
|
点击此处可从《水利学报》下载全文 |
