| 孙建,陈长植.平底水垫塘底板块失稳的数值模拟[J].水利学报,2002,33(11):0084-0088 |
| 平底水垫塘底板块失稳的数值模拟 |
| Numerical simulation for stability failure of plunge pool floor slabs |
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| DOI： |
| 中文关键词: 水垫塘 数值模拟 缝隙 上举力 底板块 失稳 |
| 英文关键词: plunge pool simulation gaps lift force floor slab stability failure |
| 基金项目: |
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| 摘要点击次数: 2234 |
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| 中文摘要: |
| 应用紊动射流理论、瞬变流理论和随机函数模拟方法，建立平底板块失稳的数学模型，用特征线法数值求解得到底板缝中动水压力、流速、板块上举力以及板块失稳水深等。小湾水垫塘板块稳定性试验和溪洛渡反拱水垫塘底板缝隙中动水压强的试验研究表明该模型合理，可预测水垫塘底板块失稳。 |
| 英文摘要: |
| A mathematical model for simulation of hydrodynamic pressure acting on the gaps between the floor slabs and beneath surface of the slabs is established. The model is solved numerically by means of characteristic line method to obtain the distribution of pressure on the beneath surface and along the gaps, velocity distribution along the gaps, stochastic process of the lift force acting on the slabs and critical downstream depth. The validity of the simulation is verified by hydraulic model test. |
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