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JF205系列混流式水轮机模型是中国水利水电科学研究院水力机电研究所新近开发的，适用于150～200m水头段．在试验中，首先对蜗壳、固定导叶与活动导叶、尾水管、转轮等通流部件进行了设计与加工．试验内容有效率试验、空化试验、水压脉动试验、飞逸试验等．通过将试验成果与我国中小型混流式水轮机转轮系列型谱中的相应转轮进行比较可看出，JF205系列水轮机模型具有高效区范围宽、空化性能好、最大单位飞逸转速低等优点，部分转轮的模型最优效率在国内首次突破94％大关．
JF205 series Francis turbine model is China Institute of Water Resources and Hydropower Electrical Machinery Institute recently developed for 150 ~ 200m head section. In the experiment, the volute, fixed guide vane and movable guide vane, draft tube, runner and other flow components were designed and processed. The contents of the test efficiency test, cavitation test, pressure pulsation test, escape test. By comparing the experimental results with the corresponding runner in the small and medium sized Francis turbine runner series, it can be seen that the JF205 series turbine has the advantages of wide range of high efficiency zone, good cavitation performance and low maximum runaway speed , The optimal efficiency of some runner models in the country exceeded 94% mark for the first time.