| 李玲,陈永灿,李旭东.泄洪隧洞防空蚀体型的数值研究[J].水利学报,2003,34(7): |
| 泄洪隧洞防空蚀体型的数值研究 |
| Numerical study on configuration of flood discharge tunnel for cavitation mitigation |
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| DOI： |
| 中文关键词: 泄洪隧洞 抗空蚀体型 自由水面 紊动模型 |
| 英文关键词: flood discharge tunnel rational configuration cavitation mitigation numerical simulation k-ε turbulent model VOF method |
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| 摘要点击次数: 2220 |
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| 中文摘要: |
| 为了求得防空蚀性能较优的泄洪隧洞体型，采用k-ε紊流模型，并用VOF方法跟踪自由水面，对溪洛渡泄洪隧道的三种体型方案进行了数值模拟计算。得到了泄洪时隧道的压力分布、空化数分布和沿程水面线。通过比较，认为其中一种体型具有较好的防空蚀性能。 |
| 英文摘要: |
| By means of numerical simulation the pressure distribution, flow depth and cavitation number variation along the central line of the flood discharge tunnel in Xilaodu Hydro project were calculated. The k ε turbulent model was adopted and VOF method was applied to track the free surface of the flow. A rational configuration of the tunnel for cavitation mitigation is suggested based on the comparison of the calculation result for three types of configuration. |
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