A rectangular channel 4 m wide is blocked by a broad crested weir 2 m high, as in Fig P10 128 The channel is horizontal for 200 m upstream and then slopes at 0 7 deg as shown The flow rate is 12 m3 s, and n 0 03 Compute the water depth y at 300 m upstream from gradually varied theory y 12mys Slope ...

First use smooth weir theory to establ ...

A rectangular channel 4 m wide is blocked by a broad crested weir 2 m high, as

Question:

A rectangular channel 4 m wide is blocked by a broad crested weir 2 m high, as in Fig. P10.128. The channel is horizontal for 200 m upstream and then slopes at 0.7° as shown. The flow rate is 12 m3/s, and n = 0.03. Compute the water depth y at 300 m upstream from gradually varied theory