The document reports results from tests measuring flow rate through channels with different slopes. It includes a table with measurements of collected volume, time taken, flow rate, depth, cross-sectional area, hydraulic radius, and velocity for each test. It then calculates average Manning's n, velocity, and hydraulic radius for each slope. Finally, it includes a graph of velocity versus the square root of slope times hydraulic radius for both slopes tested.

1. RESULT
channel quantity Normal
time taken flow rate
slope test no collected v depth yₒ B(m) A(m²) P (m) R(m) V(m/s) √(RSₒ) n
t(s) Q (m³/s)
(Sₒ) (m³) (m)
1 0.005 33.59 0.0001489 0.0450 0.0765 0.00344 0.1665 0.02068 0.04324 0.006431 0.0779
1/500 2 0.005 18.56 0.0002694 0.0920 0.0765 0.00704 0.2605 0.02702 0.03828 0.007351 0.1052
3 0.005 18.47 0.0002707 0.1400 0.0765 0.01071 0.3565 0.03004 0.02528 0.007751 0.1710
1 0.005 80.26 0.0000623 0.0140 0.0765 0.00107 0.1045 0.01025 0.05817 -0.004527 -0.0363
-0.002 2 0.005 17.89 0.0002795 0.0830 0.0765 0.00635 0.2425 0.02618 0.04402 -0.007237 -0.0896
3 0.005 16.47 0.0003036 0.1500 0.0765 0.01148 0.3765 0.03048 0.02646 -0.007807 -0.1649
n(avg) v(avg)(m/s) R(avg)(m)
0.118030 0.035598 0.007178
-0.096933 0.042880 -0.006524

2. Graph V against √RSₒ
0.0700
0.0600
0.0500
0.0400
V (m/s)
0.0300 1/500
-1/500
0.0200
0.0100
0.0000
-0.0100 -0.0080 -0.0060 -0.0040 -0.0020 0.0000 0.0020 0.0040 0.0060 0.0080 0.0100
√(RSₒ)