Centrifugal compressor model stages with small flow coefficient are often characterized by small height of blade and limited outlet width. The friction loss, leakage loss, and secondary flow losses are much higher comparing to conventional model stages.
小流量级一般对应狭窄的叶轮及出口宽度，摩擦损失增加，叶轮与固定元件间的漏气损失、二次流损失以及轮盘鼓风损失等所占的比例也相对增加，导致小流量级的多变效率较低，甚至在0.6以下。
参考来源 - 离心压缩机小流量模型级静止元件的数值优化·2,447,543篇论文数据，部分数据来源于NoteExpress
The film hole flow coefficient is increased with momentum ratio, especially when momentum ratio is small.
气膜孔流量系数随动量比的增大而增加，在小动量比下，影响尤为明显；
It's with large flow coefficient and adjustable, excellent sealing, sensitivity regulate performance, small size, vertical horizontal installed.
具有额定流量系数大，可调比大，密封效果好，调节性能灵敏，体积小，可竖卧安装等优点。
The principle of target flow-meter was introduced and design the intelligent small-flow target flow meter based on a modification method of flow coefficient shifted with small-flow.
介绍了靶式流量传感器的工作原理，对小流量流动流量系数的变化提出了修正方法并研制了智能型小流量测量的靶式流量计。
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