a) The discharge of water through a 140° bend, is 30 litres/s. The bend is lying in the horizontal plane and the diameters at the entrance and exit are 200mm and 100mm respectively. The pressure measured at the entrance is 100 kN/m², what is the magnitude and direction of the force exerted by the water on the bend? b) Comment on how frictional losses might be included in the above analysis.

a) The discharge of water through a 140° bend, is 30 litres/s. The bend is lying in the horizontal plane and the diameters at the entrance and exit are 200mm and 100mm respectively. The pressure measured at the entrance is 100 kN/m², what is the magnitude and direction of the force exerted by the water on the bend? b) Comment on how frictional losses might be included in the above analysis.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Q1) Benzene with specifie gravity of 0.8 flows through 200 mm diameter pipe at velocity of 5 m/s. Find: 1. volume flow rate of Benzene. QV 2. Mass flow rate of Benzene. 3. Weight flow rate of Benzene Q2) Water flowing through a jet with velocity of 45 m,/s. Caleulate the value of (0) to be the water reach the hole in the wall 30m 30m
The net head of a little aquarium pump is given by the man- ufacturer as a function of volume flow rate as listed below: Q, m'/s H, mH,O 1.10 1.00 1.0 E-6 2.0 E-6 0.80 3.0 E-6 0.60 4.0 E-6 0.35 5.0 E-6 0.0 What is the maximum achievable flow rate if you use this pump to move water from the lower reservoir to the upper reservoir as shown in Fig. smooth with an inner diameter of 5.0 mm and a total length of 29.8 m. The water is at room temperature and pressure. Minor losses in the system can be neglected. Note: The tubing is 0,80 m Pump
2. Suppose the pump of Fig. P14-23 is operating at efficient condition. The pipe diameter after the pump is "X" cm and pipe diameter before the pump is "Y" diameter. The friction losses along the pipe are negligible (no need to use Darcy Equation). But there are minor losses in the system. They are as follows; the sharp inlet is 0.50 m of water, each valve has a loss of 2.4 m of water, and each of the three elbows has a loss of 0.90 m of water. The contraction at the exit reduces the diameter by a factor of 0.60 (60% of the pipe diameter(after the pump)), and the loss of the contraction is 0.15 m of water. The volume flow rate is "K" Lpm. Density= 990kg/m. dynamic viscosity=1.002 x103 kg/m-s. Z1-Z2="L". The kinetic energy correction factor is 1. Determine (a) Required Head, (b) Required pump power (water Hp), (c) Reynolds number at the exit. V = 0 Reservoir Pump Given for Problem 2 X Y K L 1.8 148 6
Find the discharge of water flowing through a pipe 40cm diameter placed in an inclined position where a venturi meter is inserted, having a throat diameter of 20 cm. The difference of pressure between the main and throat is measured by a liquid of specific density 0.6 in an inverted U-tube which gives a reading of 30cm. A) Take the coefficient of discharge to be 0.92. B) The loss of head between the main and throat is 0.2 times the kinetic head of the pipe.
Q5) Water flows steadily in a 10 points very smooth pipe ( 20 cm ) diameter exit to atmosphere through an (15 cm) nozzle, the pressure in the pipe is (300 N/m2). Find the values of Reynolds numbers in the pipe ( Re1) and in the nozzle ( Re2) and which one more. Water density (1000 kg/m3) and viscosity ( 8.9x10-4 Pa.s). Choose the correct answer from the following: a- Re1 > Re2 b- Re1 < Re2 c- Re1 Re2 %3D
A 3.3-in.-diameter pipe carries 338 gal/min of water at a pressure of 27.7 psi. Determinea) the pressure head in feet of waterEnter your answer for part (a) in accordance to the question statement ftb) the velocity headEnter your answer for part (b) in accordance to the question statement ftc) the total head with reference to a datum plane 21.5 ft below the pipeEnter your answer for part (c) in accordance to the question statement ft
A pump is delivering 160 liters per second of water using an impeller diameter of 254mm and operating at a speed of 1800 rpm. If the speed is held constant and the impeller diameter is changed to 203.2 mm, what is the new discharged of the pump in liters per second?(128 L/s)
2) A 180° elbow forces the flow to make a U-turn and discharges it to the atmosphere at a mass flow rate of 40 kg/s. The diameter of the entire pipe is 10 cm. Calculate (a) the velocity of water in the pipe (b) the gauge pressure inside the pipe (c) the anchoring force needed to hold this pipe in place 180° L. Water 40 kg/s FRE FRX 50 cm 9)
A vertical jet of water thru a nozzle supports a load of 200 N at a constant vertical height of 2m from the tip of the nozzle. The diameter of the jet is 25mm. Find the velocity of the jet at the nozzle tip. A. 28.32 m/sB. 23.28 m/sC. 21.13 m/sD. 22.82 m/s
A horizontal Venturi meter is shown in Figure 8 to measure the flow rate of water in the mainpipe. The main pipe area and the throat area are 100 m2 and 50 m2 respectively. The pressureP1 is measured as 3000 kPa and the pressure in the throat is P2 = 50.0 kPa and assume, thedensity of water is 1000.0 kg/m3. Use Bernoulli’s Principle to: a) Determine the velocity V2 , m/s in the throatb) Determine the velocity, V1, m/s in the main pipec) Determine the flow rate Q, m3/s in the water mains.
Water flowing in a horizontal pipe is at a pressure of 1.40 x 10^5 Pa at a point where its cross sectional area is 1.00 sg m. When the pipe narrows to 0.400 sg m, the pressure drops to 1.16 x 10^5 Pa. Find the water's speed in the narrower pipe. Select one: O a. 5.56 m/s O b. 6.56 m/s O c. 6.76 m/s O d. 7.56 m/s Water flowing in a horizontal pipe is at a pressure of 1.40 x 10^5 Pa at a point where its cross sectional area is 1.00 sq m. When the pipe narrows to 0.400 sq m , the pressure drops to 1.16 x 10^5 Pa. Find the water's speed in the wider pipe. Select one: O a. 2.03 m/s O b. 2.33 m/s O c. 3.02 m/s O d. 3.32 m/s
Q1. Two pumps with 105.4 cm in diameters characteristics shown in figure below are used in paralel to pump water to the system. Neglecting local losses, calculate total flow rate and pump power. (a) n= 710 d/dak 120 7.5 80m ENPY (2) 6. 105 - 105.4 cm çap S N 4.5 3 90 96.52 cm çap 88% 86% 75 - 88.9 cm çap S4% (1) bom 60 1100 kW 45 750 kW 30 0.25 0.50 0.75 1.00 1.25 1.50 1.75 Debi m/s Note: Pipe is cast iron with 0.6 m in diamater and 1.6 km in length. Fluid is water with density 1000 kg/m³ . ENPY m %68 900 kW