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第五章 孔口管嘴 管路流动 §5.1 孔口自由出流 §5.2 孔口淹没出流 §5.3 管嘴出流 5.4 简单回路 5.5 管路的串连与并联 5.6 管网计算基础 PowerPoint PPT Presentation


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第五章 孔口管嘴 管路流动 §5.1 孔口自由出流 §5.2 孔口淹没出流 §5.3 管嘴出流 5.4 简单回路 5.5 管路的串连与并联 5.6 管网计算基础 5.7 有压管中的水击. 在容器侧壁或底壁上开一孔口,容器中的液体自孔口出流到大气中,称为孔口自由出流。如图,在容器侧壁开一孔口, 容器中的液体自孔口出流到大气, 不远处有收缩现象产生,过流断面面积为 A c 处面积最小,这个最小断面称为收缩断面 c ,。. §5.1 孔口自由出流. 令收缩系数 列断面 1 和收缩断面 c 的能量方程有 式中:

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第五章 孔口管嘴 管路流动 §5.1 孔口自由出流 §5.2 孔口淹没出流 §5.3 管嘴出流 5.4 简单回路 5.5 管路的串连与并联 5.6 管网计算基础

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5.1

5.2

5.3

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5.7


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