小型混流式水泵水轮机水力设计 |
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作者姓名: | 毛秀丽 郑 源 屈 波 牟 童 张 新 吴在强 |
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作者单位: | 河海大学能源与电气学院,南京,211100 |
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摘 要: | 采用二元理论结合螺旋势流设计了混流式水泵水轮机,并利用Pro/ENGINEER建立三维几何模型。通过对不同曲率导叶的CFD数值模拟计算,分别得到水泵工况和水轮机工况下的流场流线图、速度图以及压力图,证实标准导叶更适用于混流可逆式机组。效率估算结果显示,机组效率在水轮机工况达到85%,水泵工况达到88%,说明设计方法可行。
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关 键 词: | 混流式水泵水轮机 螺旋势流 水力设计 CFD数值模拟 水力性能 流场分析 光洁度 |
Hydraulic design of small mixed2flow reversible pump turbine |
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Authors: | MAO Xiu-li ZHENG Yuan QU Bo MOU Tong ZH ANG Xin WU Zai-qiang |
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Affiliation: | Col lege of Ener gy and Electr icity , H ohai Univer sity , N anj ing 211100, China |
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Abstract: | The mix ed2flow Francis pump t ur bine w as designed accor ding t o the dualistic theor y and spir al potential f low , and
Pro / ENGINEER so ftwar e was used to build the t hr ee2dimensional g eometric model. Based on the CFD numerical simulations o n
the g uide v anes w ith different curv at ur es, the flow pathlines, flow v elocit ies, and pressure distr ibutions under the w ater pump
and turbine wo rking conditio ns w ere o btained. The results sug gested that the standar d g uide vanes ar e mo re suitable fo r the
Francis pump turbine. T he efficiency calculat ion results show ed that t he turbine unit eff iciency can r each 85% under the turbine
wo rking conditio ns and 88% under the w ater pump w o rking conditio ns, which indicated that the desig n met ho d is feasible. |
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Keywords: | Francis pump turbine spiral potential flow hy dr aulic design CFD numerical simulation hydraulic per formance flow
field analysis ro ug hness |
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