Gravel mixture sediment transport videos from a straight-walled flume

This data consists of two movies of sediment transport looking from the outside of a flume. The length scale from left edge of rule to left edge of ruler is 0.50 meters. Flow in the videos is from right to left. Gravel mixtures has 11 size classes of sediment ranging from 0.5-32 mm, with sand content equal to 10% by mass. The original video was shot at 30 fps (30 Hz) with a Canon G11 set at the widest focal length. Flume slope was 1.5% and water flow rate was 42 liters per second, which is moderately above the critical shear stress for the sediment mixture (stress to critical stress ratio of ~1.5). The original video was taken 4 meters downstream of the inlet; the total flume length is 16 meters.本数据集包含两段从水槽外部拍摄的泥沙输运过程视频。标尺的总长度（左边缘至右边缘）为0.50米，视频中的水流方向为从右至左。本次试验采用的砾石泥沙混合物共分为11级粒径，粒径范围为0.5~32毫米，其中沙粒的质量占比为10%。原始视频采用佳能G11（Canon G11）相机拍摄，设置为最广焦距，帧率为30 fps（30 Hz）。水槽坡度为1.5%，水流量为42升每秒，该工况下的剪切应力略高于该泥沙混合物的临界剪切应力，剪切应力与临界剪切应力之比约为1.5。原始视频拍摄点位位于水槽入口下游4米处，水槽总长度为16米。