水头为1m、发出1匹功率且机械效率为100%时水轮机自身的转速 某种标准泵或风机在最高效率情况下,扬程为一米(风机全压为一毫米水柱)流量为0.075立方米每秒(风机为一立方米每秒)时标准泵或风机的转速为此系列泵或风机的比转速。
特高比转速离心风机气动设计和性能优化--风机网 关键词: 离心风机;比转速;数值模拟;气动设计 [gap=648]Key words: centrifugal fan; specific speed; numerical simulation; aerodynamic design
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... optimum rotary speed 最优转速 specific rotary speed 比转速 rotary speed influence coefficient 转速影响系数 ...
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The special hydraulic turbine is characterized with remarkable super-low specific speed. Thus the most suitable type should be super-low specific speed Francis turbine.
水轮机有显著的超低比转速特征,最适合的机型是超低比转速混流式水轮机。
参考来源 - 冷却塔专用水轮机的工作特性与选型·2,447,543篇论文数据,部分数据来源于NoteExpress
低比转速泵几何参数对扬程的影响,应当侧重于综合影响的研究。
The influences of geometrical parameters on low specific pump head should be emphasized on comprehensive influence.
因此,针对超低比转速泵的具体情况,进行了提高汽蚀性能的试验研究。
After thoroughly analysing the details of the ultra low specific speed pump, a series of experiment studies are carried out.
尤其是低比转速复合叶轮离心泵内部的流动更加复杂,亟待解决的问题也更多。
Especially the flow of compound impeller in the centrifugal pump at low specific speed is more complex and has more problems need urgently to resolve.
Even though a hard drive spins at 7200 times per minute or even faster, that's relatively slower than the speed of light.
即使一个硬盘驱动器的转速达到每分钟7200次,甚至更快,仍然比光速慢。
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