抄録
In recent years, river has been built in consideration of environment or the scenery. This research inserts deflector in a curved river, and changes the direction of the streamline through a curve and thereby, the influence of the flow by curve is eased. When inserting deflector in a curved river, length is 40% of river width, and if an insertion position is insertion in 63% at the back of a curve, it is effective in direction change of a streamline. Moreover, if deflector is inserted by plurality rather than the singular, a direction change of a streamline will be obtained a big effect. However, it becomes the cause that makes the streamline of a down-stream produce disorder, and has left some problems. This research experiments by changing the curvature of a curve, and reports the result examined about the validity of the deflector by change of curvature.
