# MA3006 Tutorial 1 - MA3006 FLUID MECHANICS Tutorial 1...

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MA3006 FLUID MECHANICS Tutorial 1 – Momentum equation 1. Water flowing through a horizontal pipe is directed upward by a 90 0 elbow. The mass flow rate of water is 20 kg/s and the diameter of the entire elbow is 10 cm. The elbow discharges the water into the atmosphere. The elevation difference between the centres of the exit and the inlet of the elbow is 50 cm. The weight of the elbow and the water in it is considered to be negligible. Determine the gauge pressure at the centre of the inlet of the elbow and the anchoring force to hold the elbow stationary. Density of water is 1000 kg/m 3 2. A 45 0 inclined nozzle is attached to a horizontal pipe. Water flows into the nozzle inlet at 3 m/s and leaves the nozzle exit into the atmosphere. The diameters of the nozzle inlet and outlet are 0.05 m and 0.025 m, respectively. The height difference between the nozzle outlet and inlet is 0.75 m. Determine the pressure at the nozzle inlet and the horizontal and vertical