Section: Fluid Mechanics | Type: NAT | Marks: 2
Consider the incompressible, steady and irrotational flow through a concentric reducer in a horizontal pipeline. The pipe diameter reduces from d1 = 12 cm to d2 = 4 cm as shown in figure. The pressure at position 1 and position 2 of the reducer is p1 = 55 kPa and p2 = 27 kPa, respectively. The specific weight of fluid is 7 kN/m3. Acceleration due to gravity is 10 m/s2. Neglecting frictional effects, the mass flow rate (in kg/s, rounded off to two decimal places) of the fluid through the reducer is _____.
Answer: 7.85 to 8.11