Author(s): Y. Muto; T. Ishigaki
Linked Author(s): Yasunori Muto, Taisuke Ishigaki
Keywords: Compound channel; Sinuous channel; Secondary flow; Visualisation; Turbulence
Abstract: Flow structure in a compound sinuous channel is discussed based on some experimental results. A sinuous channel is designed in a straight experimental flume, whose crossover angle is 30 degrees and sinuosity is about 1. 1. Three kinds of experiments were carried out, that is, velocity measurements, flow visualisation and tractive force visualisation. Both velocity measurements and flow visualisation successfully illustrate the secondary flow structure in the channel. Depth dependency of this structure is also identified. Tractive force distribution clearly reflects this change of the structure. The results also indicate that scouring patterns vary according to the flooding depth. This could give an important indication for scour protection works.
Year: 1999