On the Flow of the Air-Water Mixture in the Branch Pipe : 1. Experiment on the Horizontal Branch Pipe Which is Equal in Dia

Abstract

Authors tried experimented on flow patterns, loss of head, distribution of quantity, especially in a cross-branch section by flowing air-water mixtures into a horizontal branch pipe of 23.4 mm. in dia. They carried out the investigation from the following tow view points : -(1) ξb₁, loss of energy on account of branch only. (2)ξb₂, loss of energy including the effect of the irregularity of the stream after a branch section. In consequence, it was possible for them to make the characteristics of the loss of energy comparatively clear. Then they discovered that the coefficient of loss of head ξb₂' approximately proportionate to the ratio of energy at the main flow and the branch flow.