水轮机在工作时，水流要经过引水部件、 导水部件、转轮和尾水管等过流部件，水流便产生摩擦、撞击、漩涡和脱流等损失。这些情况所引起的水头损失，称为水力损失。它随过流的流速增加而加大。
取水泵房向两水厂输水分配问题的探讨_工程论文 关 键 字 ：取水泵房，水量分配，水力损失 [gap=210]Key Words：Water intake pump house; Water allocation; Hydraulic loss.
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The internal flow, pressure recovery coefficient and hydraulic loss coefficient in volute are affected by the flow rate.
工况对蜗壳内部流动、压力恢复系数、水力损失系数是有影响的。
参考来源 - 离心油泵蜗壳内部三维粘性流体流动·2,447,543篇论文数据，部分数据来源于NoteExpress
分离的产生将严重影响水力机械的流动特性，流动分离与水力损失密切相关。
Separations seriously affect the flow behavior of hydraulic machinery and is intimately connected with hydraulic losses.
成果对减小出水流道水力损失，实现泵装置优化设计，提高泵装置效率有重大意义。
The results are significant for decreasing hydraulic loss of discharge passage, pump assembly optimum design and increasing pump assembly efficiency.
本文分析了泵及泵装置的水力损失和水力效率的关系，推求出了泵装置的最高效率工况点。
The most efficient work point of of the pump device was deduced after the analysis of the relationships between hydropower loss and hydropower efficiency in pump and pump device.
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