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流体摩擦阻力计算是负压(真空)排水系统设计计算的主要环节,介绍、对比了国内外负压排水管道气水两相流摩擦阻力的计算方法。根据实际工程经验,分析汇总了流体在负压管道中的不同流态形式,并进行了讨论。
The calculation of fluid friction resistance is the main part of the design of vacuum (vacuum) drainage system. The calculation method of the frictional resistance of gas-water two-phase flow in domestic and international negative pressure drainage pipes is introduced. According to the actual engineering experience, the analysis and summary of the fluid flow in the negative pressure pipe in different forms, and were discussed.