| 摘要: |
| 利用物理模型试验和数学模型计算，分析了三峡船闸末级闸首泄水廊道中阀门在正常开启过程中，阀门段的水流流态特征，阐述了非恒定流条件下的阀门段廊道水流压力、阀门启门力和阀门段空化特性，确定了反向弧形门各开度下的临界空化数. |
| 关键词: 运行方式 空化数 水动力学 阀门 泄水廊道 模型试验 三峡船闸 |
| DOI： |
| 分类号:TV135.4∶U641.332 |
| 基金项目: |
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| Hydraulic study of valve with extra long emptying culvert of the Three Gorges Lock's last chamber (1) —Hydrodynamic characteristics of valve with normal valve opening |
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| Abstract: |
| Based on the results of physical model tests and mathematic modelcalculation， the characteristics of flow pattern in the valve stretch, with normal valve opening and extra long emptying culvert, of the Three Gorges Lock's last chamber are analyzed. Specific characters of flow pressure and cavitation in the valve stretch, and of hoisting load are described. And the critical values of cavitation for different openings of reverse tainter valves are determined. |
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