Stereo PIV measurement of open channel flows in RA8 flume at the University of Sheffield

Stereo PIV measurement of open channel flows in RA8 flume at the University of Sheffield Six flow conditions over a rough bed of spheres with 24mm diameter. PIV plane was at the centerline of the flow shining through the bed of spheres. Where the laser PIV plane shone up, the spheres were replaced with translucent hollow spheres to allow the light to go through. Gradient of the flow was 0.001. Water Depth Flow rate Velocity Reynolds’ number Manning’s number Froude number Weber number Relative Submergence (mm) (l/s) (m/s) (with depth) 49 1.87 0.08 3,740 0.049 0.11 3.96 2.04 69 5.05 0.15 10,100 0.031 0.18 20.53 2.88 89 7.46 0.17 14,920 0.031 0.18 34.74 3.71 109 11.21 0.21 22,420 0.028 0.2 64.05 4.54 129 15.4 0.24 30,800 0.026 0.21 102.14 5.38 149 20.7 0.28 41,400 0.023 0.23 159.77 6.21