The study on flow field in front and at back of a Francis turbine runner is very important for the runner in its hydraulic design and characteristic improvement.
混流式水轮机转轮前后的流场研究对于转轮水力设计，改善其性能有着重要意义。
There iss strong vibration in the draft tube of a Francis turbine or axial flow fixed blade propeller hydraulic turbine when the turbine is running on part loading.
混流和轴流定浆式水轮机在部分负荷下运行时，尾水管中常出现较为强烈的振动。
The unsteady flow in a draft tube of Francis turbine under the off-design operation is produced by the dynamic behavior of a helical vortex rope with the dead core.
混流式水轮机在非设计工况点下运行时，尾水管内部的非定常流动是由死水域和螺旋涡带的动态行为引起的，尾水管上部的螺旋涡带旋转引起流动的基频脉动。
In this paper, the stresses analysis on prototype runner in power station and model runner proved that there is a linear relationship between blade stress and output of Francis turbine.
通过电站真机与模型转轮应力测试结果的分析证明，混流式转轮叶片应力与机组出力之(？)存在线性关系。
For a long time, the vibration phenomenon of Francis turbine-generator units strongly affects the safe work of the units and attracts the close attention of people.
混流式水轮发电机组的振动长期以来一直严重影响机组的安全运行，因而为人们所密切关注。
A brief presentation on computer aided hydraulic design of Francis Turbine runners is given, the general principle of which are also applicable to centrifugal and mixed flow pump runners.
概要介绍混流式水轮机转轮计算机设计的水力设计方法，其一般原理同样适用于离心泵和混流泵叶轮的设计。
A new type hydraulic turbine which is called tubular-Francis turbine is described in this paper. The performance of this turbine is compared with that of Francis turbine.
本文介绍了一种称之为贯流混流式水轮机的新机型，并就其性能与混流式水轮机进行了详细的比较。
So it provided a scientific basis for fatigue study of Francis turbine runner.
为混流式转轮疲劳研究提供了科学依据。
So it provided a scientific basis for fatigue study of Francis turbine runner.
为混流式转轮疲劳研究提供了科学依据。
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