| 张晓东,刘之平,高季章,王晓松.竖井旋流式泄洪洞数值模拟[J].水利学报,2003,34(8): |
| 竖井旋流式泄洪洞数值模拟 |
| 3-D numerical simulation of flow in shaft spillway with whirling current |
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| DOI： |
| 中文关键词: 竖井旋流 消能 数值模拟 紊流模型 VOF方法 |
| 英文关键词: shaft spillway with whirling current energy dissipation numerical simulation k-εturbulent model VOF method |
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| 中文摘要: |
| 本文采用k-ε双方程紊流模型及基于水气两相流的VOF方法，数值模拟竖井旋流泄洪洞复杂的水流运动，得到自由水面，流速及压力等水力要素的分布规律。数值模拟结果与已有模型试验数据的对比分析表明，采用的数值方法能够较好地模拟竖井旋流泄洪洞泄流过程。此外，利用数值模拟的结果对竖井的泄流能力和消能率进行了验证。 |
| 英文摘要: |
| The k-εtwo equation model for turbulent flow and VOF method are adopted to simulate the 3 D turbulent flow in shaft spillway with whirling current. The free surface profile, the magnitude and distribution of velocity and pressure, and the air flux are obtained from the calculation. The numerical result is in good agreement with the experimental data. On this basis, the energy dissipation ratio and discharge of the spillway can be calculated. |
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