Water is flowing in a 0.25-m-diameter pipe inclined (upward) at a slope of 15% with a length of 50 m as shown in Figure P7.12. The difference in piezometric head across the pipe is 0.1 m and the...

Water is flowing in a 0.25-m-diameter pipe inclined (upward) at a slope of 15% with a length of 50 m as shown in Figure P7.12. The difference in piezometric head across the pipe is 0.1 m and the temperament of the water is 25°C. (a) Determine the thickness of the

boundary layer by both the Morris and Wiggert and Singh criteria. (b) If the pipe material is new cast iron, would the pipe be considered smooth, rough, or neither in this case? (c) Determine the pressure drop.