抄録
An experimental study is carried out for dividing flow through 90°T-junction of rectangular cross-section. The Reynolds number based on the mean velocity at the main channel and the hydraulic diameter ranges from 1.5x 10^3 to 6.0x10^3. The flow rate ratio (ratios between the flow rates in branch and main channel) is set at 0.2, 0.4, 0.6 and 0.8. The results show that the loss coefficient of main channel undergo a characteristic change with changes in the Reynolds number and flow rate ratio. The loss coefficient of branch channel is increased with the increase of flow rate ratio, decreased with the increase of the Reynolds number.
