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本文提出排水竖管膜态过流能力计算的一种新方法。本方法从液膜中的流速分布出发,理论上较严谨;而且利用了普通管流流速分布和水力阻力资料。长期以来,人们对普通管流的流速分布和水力阻力进行了广泛的研究,积累了丰富的经验和资料,因而本计算方法较为可靠。本文还根据计算结果,对规范规定的数据提出补充建议。
This paper presents a new method for calculating the membrane over-current capacity of the drainage riser. This method starts from the distribution of the flow velocity in the liquid film and is theoretically more rigorous; it also utilizes the data of flow velocity distribution and hydraulic resistance of ordinary tube flow. For a long time, people have conducted extensive research on the flow velocity distribution and hydraulic resistance of ordinary pipe flow, and accumulated a wealth of experience and data, so this calculation method is more reliable. Based on the calculation results, the paper also proposes supplementary suggestions for the data specified in the specification.