A triangular channel with the most efficient proportion discharges water at the rate of 2 cubic meter per second. Assuming n=0.018 and S=0.0021, Calculate the normal depth of flow in meters.

2.Water exits a reservoir through a 1-Km long D=?mm diameter horizontal Tunnel as shown below. The entrance is sharp-edged, and the discharge is to the lower reservoir. If the flow rate is 2 CMS, What tunnel diameter is required to achieve the desired flow rate if local losses are neglected? Upper reservoir Tunnel = 1 km 23 m Lower reservoir

3. Water is moving between two reservoirs at a flow rate of 0.08 m³/s via the pipes shown in the diagram (D₁ = 10 cm, D₂ = 20 cm). Assume both pipes have a roughness ks = 0.08 mm. If the difference in water surface elevation between the two reservoirs is 70 m and L₁ = 50 m, what is the length of the larger pipe (L2)? Further, what is the entrance length of pipe 1? For what fraction of the length of pipe 1 is flow fully developed? Include form losses due to pipe components (entrance, expansion, and exit) in your calculations. For more info on component losses, use Table 10.5 and 0 = 180°. Water T = 20°C D₁ D₂ 1₂2.

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