Abstract
Turbulence measurements over the flat movable bed with a Laser Doppler Anemometer were conducted in open channel flows, as well as the bed loads were collected and its volume were measured. It is found that, at the near the bed, the contributions to the Reynolds stress become larger and the ratio of RS4/RS2 of the magnitude of sweep event to the magnitude of ejection event become smaller with the increase of the bed load transport rates. The bursting period becomes shorter as compare with the one of the non-bed load flow.
