| 水电站水力过渡过程数值仿真的理论与实践 |
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| 引用本文： | 巨江,诸亮,刘菁,徐春燕.水电站水力过渡过程数值仿真的理论与实践[J].西北水电,2009(3):1-6. |
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| 作者姓名： | 巨江 诸亮 刘菁 徐春燕 |
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| 作者单位： | 中国水电顾问集团西北院工程科研实验分院,西安,710043 |
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| 摘 要： | 系统地介绍了水电站水力过渡过程数字仿真的基本理论和计算方法,过渡过程的起因和研究内容,并用多个水工模型试验测量的调压室水位、管道水锤压力及其压力过程线资料验证了计算方法及参数选择的合理性.利用CTD技术得到了调压室内的水流流态、三维流速分布以及调压室水位波动的动态演示.该数字模型已用于多个电站引、尾水系统的水力过渡过程计算,得到的调压室最高/最低涌浪水位、蜗壳及岔管断面最大/最小水锤压力、机组最大飞车转速以及它们的变化过程线,引水隧洞最大/最小内水压力包络线、小波动和水力干扰下的发电频率摆动、机组稳定性分析等成果,为工程设计提供了重要依据.
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| 关 键 词： | 水力过渡过程 调压室 水锤压力 涌浪 |
Numerical simulation theory and practice in hydraulic transient of hydropower stations |
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| JU Jiang,ZHU Liang,LIU Jing,XU Chun-yan.Numerical simulation theory and practice in hydraulic transient of hydropower stations[J].Northwest Water Power,2009(3):1-6. |
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| Authors: | JU Jiang ZHU Liang LIU Jing XU Chun-yan |
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| Affiliation: | Engineering Scientific Research and Experiment Institute;CHECC;Xi'an 710043;China |
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| Abstract: | The paper presents the basic theory and calculation method for numerical simulation of hydraulic transient of hydropower stations,as well as the causes and study contents of transient.The reasonability of calculation method and parameters selection is verified by surge chamber water levels,hammer pressure of pipe lines and pressure curves obtained in a lot of hydraulic model tests.By use of CFD technology,dynamic displays are obtained for flow pattern in surge chamber,3D velocity distribution and surge cham... |
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| Keywords: | hydraulic transient surge chamber hammer pressure surge wave |
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