Column Separation Accompanying Liquid Transients in Pipes
Column Separation Accompanying Liquid Transients in Pipes
复制标题
伴随管道中液体瞬变的柱分离
DOI：
10.1115/1.3609712
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发表时间：
1967
期刊：
影响因子：
--
通讯作者：
R. Baltzer
中科院分区：
文献类型：
--
作者：
R. Baltzer
从控制流体动力学的角度描述和研究了柱分离。利用含非线性摩擦损失的连续性偏微分方程和动量偏微分方程，对管道内液体在全管流动和自由表面流动条件下的瞬态运动进行了数学描述。利用数字计算机和特征法编制了柱状分离现象数值模拟的完整方程组。将数学模拟得到的理论时压信息与实验室调查得到的相应实验信息进行了比较。尽管原型流中的能量损失高于预期，但两组信息的总体比较是有利的。
Column separation is described and investigated in terms of the governing fluid dynamics. The partial differential equations of continuity and momentum, including nonlinear friction losses, are used to mathematically represent the transient movement of liquids in pipes under conditions of both full-pipe and free-surface flows. The complete systems of equations are programmed for numerical simulation of the column-separation phenomenon using a digital computer and the method of characteristics. Theoretical time-pressure information derived from mathematical simulation is compared with the corresponding experimental information obtained from laboratory investigation. Despite higher-than-anticipated energy losses in the prototype flow, the general comparison of the two sets of information is favorable.