Water at 20°C is flowing through a 20 cm diameter pipe. Take the kinematic viscosity of water at 20°C = 0.0101 stoke. Assume that the changes from laminar to turbulent at Re = 2320. The critical velocity will be:
1
1.17 cm/s
2
11.17 cm/s
3
111.7 cm/s
4
0.117 cm/s