Energy Loss and Flow Pattern due to Confluence in a Two-Dimensional Right-Angled T-Shaped Flow Section

Abstract

The flow patterns due to confluence in a two dimensional right-angled T-shaped flow section were obtained experimentally. The confluence loss was evaluated from momentum theory and the effect of downstream flow on energy loss was investigated. The results were as follows :
The loss coefficients calculated by momentum theory were quite small compared with experimental results, and the calculated values of η₁₃ (=loss coefficient for main stream) did not change very much, even if m (=sectional area ratio) was changed.
The incomplete point of momentum theory was improved by considering the effect of downstream flow.