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单词 specific speed
释义
specific speed

Chemical Engineering
  • A classification of centrifugal pump impellers at optimal efficiency with respect to geometric similarity. It is useful for the scale-up and selection of centrifugal pumps and is a measure of pump pressure, head, and speed. Although the specific speed represents the numerical value for a rotational speed, and is usually expressed simply as a number, it actually has dimensions L3/4T−3/2. See suction specific speed.


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