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真空發(fā)生器MC10系列

由流體力學(xué)可知，對(duì)于不可壓縮空氣氣體(氣體在低速進(jìn)，可近似認(rèn)為是不可壓縮空氣)的連續(xù)性方程：A1v1= A2v2式中A1，A2----管道的截面面積，m2v1，v2----氣流流速，m/s由上式可知，截面增大，流速減小;截面減小，流速增大。對(duì)于水平管路，按不可壓縮空氣的伯努里理想能量方程為P1+（1/2）*ρv12=P2+(1/2)ρv22式中P1，P2----截面A1，A2處相應(yīng)的壓力，Pav1

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演示數(shù)據(jù)演示數(shù)，演示數(shù)據(jù)演示數(shù)據(jù)演示(演示數(shù)據(jù)演示，演示數(shù)據(jù)演示數(shù)據(jù)演示數(shù)據(jù))演示數(shù)據(jù)演示：

A1v1= A2v2

演示A1，A2----演示數(shù)據(jù)演示數(shù)，m2

v1，v2----演示數(shù)據(jù)，m/s

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P1+（1/2）*ρv12=P2+(1/2)ρv22

演示P1，P2----演示A1，A2演示數(shù)據(jù)演示，Pa

v1，v2----演示A1，A2演示數(shù)據(jù)演示，m/s

ρ----演示數(shù)據(jù)演，kg/m3

演示數(shù)據(jù)演，演示數(shù)據(jù)，演示數(shù)據(jù)，演v2>v1演，P1>P2。演v2演示數(shù)據(jù)演示，P2演示數(shù)據(jù)演示數(shù)據(jù)演，演示數(shù)據(jù)演。演示數(shù)據(jù)演示數(shù)據(jù)演示數(shù)據(jù)，演示數(shù)據(jù)。

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