The free stream water temperature in the laminar boundary layer is t=25 °c. the temperature of the wall is tw 24°c. the velocity of water is 0.6 cm/s, distance from leading edge is 20 cm. determine the lo length x. hint: use the properties of water at 25°c and pr=6.21

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.