抄録
At the fundamental study of the three dimentional turbulent structure, visualization technique by dye injection methods and hydrogen bubbles methods were used. Experiment have done in the rectanguler open channel for small aspect ratio (B/H=0.2). In order to visualize the turbulent structures from inner wall region to outer wall region, water with FLUORESCEIN SEDIUM and vertical (or horizontal) harogen light sheet were used.
In this paper reration between the wall turburence and mechanism of secondary flows are described in detail.
