A Kaplan turbine plant develops 2000 kW under a head of 8 m while running at 100 rpm. The discharge is 250 m3/s. The tip diameter of the runner is 6⋅5 m and the hub to tip ratio is 0⋅43. What is the flow ratio based on tip speed? (Take acceleration due to gravity as 9⋅81 m/s2)
1
0⋅43
2
0⋅58
3
0⋅62
4
0⋅73