B141 底壁面に縦桟粗度を設置した開水路流れの乱流構造
2003 年 23 巻 Supplement2 号 p. 89-90
詳細
2003 年 23 巻 Supplement2 号 p. 89-90
The characteristics of turbulent structure in turbulent open channel flow with longitudinal ridge elements were investigated by using flow visualization techniques. The velocity measurements show that the mean primary flow velocity over ridges was low and their turbulence intensities were high, and relatively the mean primary flow velocity over troughs was high and their turbulence intensities were low. The results of flow visualization suggest that vortical structures formed on ridge elements and troughs contribute to the generation of characteristics of velocity distributions.
