| 刘沛清,李福田,王颖.挑跌流水垫塘内流态结构控制参数与冲击压力变化规律实验研究[J].水利学报,2003,34(3):0025-0028 |
| 挑跌流水垫塘内流态结构控制参数与冲击压力变化规律实验研究 |
| Experimental study on controlling parameters of flow in plunge pools and corresponding impact pressure characteristics |
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| DOI： |
| 中文关键词: 水垫塘 淹没冲击射流 冲击压力 |
| 英文关键词: plunge pool submerged impingement jet impact pressure |
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| 中文摘要: |
| 为了探求更简单合理的水垫塘设计控制参数，本文通过实验研究，系统观测了不同来流条件和水垫深度条件下，水垫塘内的流态特征和冲击压力的变化规律，提出了表征挑跌流水垫塘内淹没冲击射流流态结构的控制参数，揭示了影响淹没冲击射流对水垫塘底板冲击压力的主要因素，并建立了经验关系式，可为水垫塘消能防护设计提供实验依据。 |
| 英文摘要: |
| In order to establish a relationship between the impact pressure induced by the impinge jet and the flow patterns,a systematic flume experiment was carried out and the time averaged pressures at different flow conditions were measured.The results revealed the controlling parameters of flow pattern can describe the characteristics of the flow structure of submerged impinge jet in the plunge pools better than the impact pressure.An expression of hydrodynamic impact pressure was proposed,considering the degree of dispersion and submergence and it can be used in designing plunge pools. |
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