| 摘要: |
| 用所建立的船闸反弧门段的局部模型，对反弧门后水流流态和结构进行了流动显示。通过以３８６微机为中心、ＶＰ３２图像板和ＣＣＤ图像传感器等组成的采集处理系统，获得了比较清晰的反弧门后水流流动图谱。给出了恒定流条件下回流区长度的估算公式，比较了恒定与非恒定流门后流态的差异，并求得反弧门不同开度时的收缩系数。 |
| 关键词: 水流流态，水流收缩系数，反弧门，船闸 |
| DOI： |
| 分类号:U641.1 |
| 基金项目: |
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| Study on flow patterns and contraction coefficients behind reversed tainter valve for ship locks |
|
Li Yun,Zhang Ruikai
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|
Nanjing Hydraulic Research Institute
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| Abstract: |
| A partial model of a reversed tainter valve for shiplock described in this paper is used in displaying flow patterns and structures behind the valve with computer image processing system composed of 386 microcomputer, VP32 image board and CCD image sensor etc. In turn, we have got a clearer image spectrum of flow behind the valve, given a formula to estimate length of backflow region under steady flow conditions and derived contraction coefficients for various openings, with the aid of flow patterns disply and measurement of contraction coefficients. |
| Key words: flow pattern,flow contraction coefficient,reversed tainter valve,ship lock, |
