manual tracking

Manual Measurements of Distributions of Particle Motions

This experiment was performed in the recirculating flume at the Arizona State University River Dynamics Laboratory. 

Flow velocities in the flume were measured using an acoustic Doppler velocimeter (ADV) positioned approximately 1 cm above the bed, the time-averaged velocity near the bed was 31.0 cm sec-1 with a flow depth of 12.5 cm. The bed material used in this experiment is a uniform, coarse sand with an average diameter D50 of  0.05 cm.  The stream bed was prepared by smoothing it flat prior to the start of the experiment.