r=20mm, the friction factor , the shear stress at pipe wall and the head loss per meter of the pipe length.

4a

Write the expanded form of Darcy’s Law. Draw a tube full of sand, with piezometers, and label the components of the system.

Determine the flow direction and flow rate for  each pipe of the pipe network shown in figure. Not: i)Take the inital values of the flow rates and flow directions  shown in figure.  ii) Take the Darcy factor f=0.005 in the analysis. Initial flow rates of pipes; Q1= 0.02 m3/s, Q2=0.012 m3/s , Q3=0.016 m3/s, Q4=0.03 m3/s, Q5=0.014 m3/s,Q6=0.014 m3/s, Q7=0.028 m3/s.

For the piping system of Fig. , all pipes are concretewith a roughness of 0.04 in. Neglecting minor losses, computethe overall pressure drop p1 - p2 in lbf/in2 ifQ =20 ft3/s. The fluid is water at 20°C.

A venturi meter has water flowing through it. The pressure difference is 1 psi. The diameter at point 1 is 1 ft, and that at point 2 is 0.5 ft. What is the volumetric flow rate through this meter?A. 0.03 m³/sB. 0.04 m³/sC. 0.06 m³/sD. 0.07 m³/s

This is merely a past paper question please assist

help

The pressure loss p in a pipe is related to the flow rate Q by the equation P = KQ^n, where K and n are constants. If K = 190 x 10³determine the value for n when a flow rate of Q = 0.04 m³/s causes a pressure loss of 180 Pascals.

Water is stored in a tank sketched in the figure below to support the demand of a nearby community area.The system is designed so that pressure at the location B always lies in the range of 330 to 440 kPa (gauge).Water demand fluctuates between 0.3 and 1 m3/s regardless of pressure at B. The supply pipe of 600 mmdiameter and 1 km length between A and B is made of steel and has the equivalent sand roughness of 1 mm.Although not shown in the figure, the supply pipe has five 90◦ bends, each having the head loss coefficientof 0.8. The figure shows that the bottom end of the tank is located 42 m above the ground, and the pipe isburied 1.5 m below the ground. A pump system regulates so that the tank keeps the same water level all thetime. Assume water at 20◦C, and air in the storage tank has the atmospheric pressure. To meet the designcriterion for pressure at B, what should be the depth of water h in the storage tank?