A 프 B Water flows at the rate of 21.6 [cfs] from reservoir A to reservoir B through two cast iron pipes connected in series. Assume that L1= 2628.0 [ft], D1 = 2.0 [ft], L2 = 511.0 [ft], D2 = 1.7 [ft] and neglect minor losses. Determine the difference in water surface elevations based on the Darcy-Weisbach equation in [ft]. Type your answer...

Hi, please could someone show me how U2 = 1.98m/s. This is the correct answer but i've tried a few methods and can't quite get there! Any notes on the method alongside calculation would be great :) The two pipes are parallel, Kexit =1 for pipe 1 and pipe 2, entry losses can be ignored.

The hydraulic conductivity of a homogeneous gravelly aquifer is 3 x 10-1  cm/sec.   The hydraulic gradient (groundwater surface slope) of the phreatic (water table) aquifer is 0.01 and the aquifer's effective porosity is 0.25.   Calculate the following two parameters and provide the answer to question b) in the space provided (numerical answer only, no units or any).    Calculate the specific discharge that represents flow conditions of the aquifer in cm/sec. Also Calculate the approximate average velocity of a conservative solute dissolved in this aquifer, calculated to units of cm/sec (enter numerical answer without stating units).

Water flows through a horizontal 0.5 ft diameter pipe with a mean velocity of 8 ft/s. The surface roughness of the pipe is € = 0.0005 ft. Determine the head loss in a 100 ft length of the pipe. Using Darcy-weisbach equation (h₁ = f * · LV² * D 2g Hint: Use Moody Chart.