A pipe with a venturi meter withdraws water from a tank as shown in the figure. Find the head losses at the throat of the venturi meter under these conditions: - - - Cavitation is just about to occur at the throat of the venturi meter. The vapor pressure of water at 20 °C is 2340 Pa abs. Velocity in the portion of the pipe with diameter D is 4 m/s. D= 30 cm, d= 15 cm, Patm = 100 kPa, H = 5 m. Assume steady flow and α = 1.0 everywhere. H Water T= 20°C Ꭰ

Fig: 1