| 混流式水轮机导水机构二重叶栅的流动 |
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| 引用本文： | 韩凤琴,黄积业,范春学,久保田乔.混流式水轮机导水机构二重叶栅的流动[J].华南理工大学学报(自然科学版),2005,33(8):20-22,44. |
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| 作者姓名： | 韩凤琴 黄积业 范春学 久保田乔 |
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| 作者单位： | 华南理工大学,电力学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目（50379015） |
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| 摘 要： | 阐述了用计算流体动力学CFD（Computational Fluid Dynamics）技术研究水轮机导水机构二重叶栅内部流场性能变化的方法，研究了不同工况流场的速度、压力及二重叶栅能量损失的变化规律，数值解析结果与实验结果吻合。研究表明，导水机构内部流场的变化直接影响到转轮进口流动条件和水轮机运行的稳定性，数值解析结果对优化设计及安全运行具有指导作用。
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| 关 键 词： | 水轮机 二重叶栅 多工况 计算流体动力学 性能 |
| 文章编号： | 1000-565X（2005）08-0020-03 |
| 收稿时间： | 2004-10-19 |
| 修稿时间： | 2004-10-19 |
Cascade Flow Within Guiding Device of Francis Turbine |
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| Han Feng-qin,Huang Ji-ye,Fan Chun-xue,Kubota Takashi.Cascade Flow Within Guiding Device of Francis Turbine[J].Journal of South China University of Technology(Natural Science Edition),2005,33(8):20-22,44. |
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| Authors: | Han Feng-qin Huang Ji-ye Fan Chun-xue Kubota Takashi |
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| Abstract: | This paper expounds using the Computational Fluid Dynamics (CFD) method to study the variations of performance of cascade flow within the guiding device of francis turbine. The variations of the flow field, the pressure field, the energy field and the energy loss in multi-operating conditions are investigated. It is found that the computational result accords with the experimental results. This research shows that the variations of flow field within cascade directly affects the runner inflow conditions and the stability of turbine operation. The numerical analyzing results lay a technical basis for the optimum design and the stable operation of turbines. |
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| Keywords: | francis turbine cascade multi-operating condition Computational Fluid Dynamics performance |
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