Water flows steadily up the vertical 1-in.-diameter pipe and out the nozzle, which is 0.5 in. in diameter, discharging to atmospheric pressure. The stream velocity at the nozzle exit must be 30 ft/s. Calculate the minimum gage pressure required at section 1 . If the device were inverted, calculate the required minimum pressure at section 1 to maintain the nozzle exit velocity at 30 ft/s?

Question 1: Water is expelled by a jet to the environment (i.e. the water flow is surrounded by atmospheric pressure). To change the direction of the water flow, this enters to a curved pipe as show in the figure (top view perspective). Calculate the forces exerted by the flow to the pipe in x and y direction (both horizontal). Use a water density of 1000 kg/m³, Q=1 m³/s, diameter d-0.3 m. Follow the 4 steps explained in the lectures and state your assumptions clearly. 30 Question 2: Repeat question 1 but change the curvature from 30 degrees to 90 degrees. How the forces change? 90

The pump shown in the figure below produces a steady flow of 12 gal/s through the nozzle. Determine the nozzle exit diameter, D2, if the exit velocity is to be V₂ = 109 ft/s. D₂ = Pump i Section (1) Section (2) V₂ in

Air flows steadily through the variable area pipe shown with negligible viscous effects. Determine the flow rate in terms of h, D, d as shown in the diagram. Calculate the air flow rate in m^3/s if h = 0.1m, D = 0.3 m, and d = 0.15 m.