Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
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Chapter 11, Problem 11.19PP
Water at
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A 500 mm diameter pipe gradually reduces to 20 mm diameter and the gradually enlarge to its original size. Given the pressure at the base of the convergence of 0.60 MPa with a flow of 0.08 cu. m/s,
1. What is the velocity at point 1?
2. What is the velocity head at point 2?
3. Neglecting the head loss, the pressure of the smallest section is?
A horizontal 300-mm pipe contracts to a 150-mm diameter. If the flow is 0.127 m3/s of oil (s.g.=0.88) and the pressure in the smaller pipe is 265 kPa what is the pressure in the bigger pipe neglecting friction?
Water flows upward in a vertical 300-mm pipe at the rate of 0.222 m /s. At point A in the pipe the pressure is 210 kPa. At B, 4.57 m above A, the diameter is 600 mm, and the lost head A to B equals 1.83 m. Determine the pressure at B.
indicate the free body diagram
Chapter 11 Solutions
Applied Fluid Mechanics
Ch. 11 - Water at 10C flows from a large reservoir at the...Ch. 11 - For the system shown in Fig. 11.14, kerosene (...Ch. 11 - Figure 11.15 shows a portion of a hydraulic...Ch. 11 - Figure 11.16 shows part of a large hydraulic...Ch. 11 - Oil is flowing at the rate of 0.015m3/s in the...Ch. 11 - For the system shown in Fig. 11.18, calculate the...Ch. 11 - A liquid refrigerant flows through the system,...Ch. 11 - Water at 100F is flowing in a 4-in Schedule 80...Ch. 11 - A hydraulic oil is flowing in a drawn steel...Ch. 11 - In a processing plant, ethylene glycol at 77F is...
Ch. 11 - Water at 15C is flowing downward in a vertical...Ch. 11 - Turpentine at 77F is flowing from A to B in a 3...Ch. 11 - ]11.13 A device designed to allow cleaning of...Ch. 11 - Kerosene at 25C is flowing in the system shown in...Ch. 11 - Water at 40C is flowing from A to B through the...Ch. 11 - Oil with a specific gravity of 0.93 and a dynamic...Ch. 11 - Determine the required size of new Schedule 80...Ch. 11 - What size of standard hydraulic copper tube from...Ch. 11 - Water at 60F is to flow by gravity between two...Ch. 11 - The tank shown in Fig. 11.24 is to be drained to a...Ch. 11 - Figure 11.25 depicts gasoline flowing from a...Ch. 11 - For the system in Fig. 11.26, compute the pressure...Ch. 11 - For the system in Fig. 11.26, compute the total...Ch. 11 - For the system in Fig. 11.26 specify the size of...Ch. 11 - A manufacturer of spray nozzles specifies that the...Ch. 11 - Specify the size of new Schedule 40 steel pipe...Ch. 11 - Refer to Fig. 11.27. Water at 80C is being pumped...Ch. 11 - For the system shown in Fig. 11.27 and analyzed in...Ch. 11 - In a water pollution control project, the polluted...Ch. 11 - Repeat Problem 11.29, but use a 3-in Schedule 40...Ch. 11 - Water at 10C is being delivered to a tank on the...Ch. 11 - If the pressure at point A in Fig. 11.29 is 300...Ch. 11 - Change the design of the system in Fig. 11.29 to...Ch. 11 - It is desired to deliver 250 gal/min of ethyl...Ch. 11 - For the system shown in Fig. 11.30, compute the...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Figure 11.31 depicts a DN 100 Schedule 40 steel...Ch. 11 - Repeat Problem 11.38 but replace the globe valve...Ch. 11 - Repeat Problem 11.38 but use a DN 125 Schedule 40...Ch. 11 - Repeat Problem 11.38, but replace the globe valve...Ch. 11 - It is desired to drive a small,...Ch. 11 - Figure 11.32 shows a pipe delivering water to the...Ch. 11 - Repeat Problem 11.43, except consider that there...Ch. 11 - A sump pump in a commercial building sits in a...Ch. 11 - For the system designed in Problem 11.45, compute...Ch. 11 - Figure 11.33 shows a part of a chemical processing...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - Analyze the system shown in Fig. 11.11 with...Ch. 11 - Create a program or a spreadsheet for analyzing...Ch. 11 - Create a program or a spreadsheet for determining...
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- Water flows upward in a vertical 300-mm pipe at the rate of 0.222 m /s. At point A in the pipe, the pressure is 210 kPa. At B, 4.57 m above A, the diameter is 600 mm, and the lost head A to B equals 1.83 m. Determine the pressure at B.arrow_forwardA pipe carrying oil of specific gravity 0.877 changes in size from 150 mm at section 1 and 450mm at section 2. Section 1 is 3.6 m below section 2 and the pressures are 90 KPa and 60 KPa, respectively If the discharge is 150 lit/sec, determine the head lost and the direction of flow.arrow_forwardA pipe carrying oil of specific gravity 0.877 changes in size from 150 mm at section 1 and 450 mm at section 2. Section 1 is 3.6 m below section 2 and the pressures are 90 KPa and 60 KPa, respectively. If the discharge is 150 lit/sec, determine the head lost and the direction of flow.arrow_forward
- A 12′′ pipe line carries oil of specific gravity 0.811 at a velocity of 80.0 ft/sec. At points A and B, measurements of pressure and elevation were 52.6 psi and 100.0 ft and 42.0 psi and 110.0 ft,respectively. For steady flow, find the lost head between A and B. indicate the free body diagramarrow_forwardTopics: Fundamental of fluid flow Water flows upwards in a vertical pipeline of gradually varyingsection from point 1 to point 2, which is 1.5m above point 1, at the rate of0.9m^3/s. At section 1 the pipe diameter is 0.5m and pressure is 800 kPa. Ifpressure at section 2 is 600 kPa, determine the pipe diameter at that location.Neglect losses.arrow_forwardWater (@ 75°C) flows at a horizontal pipe at a rate of 1.6 m3/min in a pipe. Flow enters a 3 inch 45 deg. elbow and diverted upwards into a connecting pipe. The diameter of the outlet is 2 inches. If the pressure just before the elbow is 78kPa, what is the magnitude and direction of the force to keep the elbow in place? Assume: that frictional losses in the elbow are negligible.arrow_forward
- reservoir with water pressurized pipe diameter is 5 cm. The head loss in the system as given by hL= 5V^ 2/ 2g. The height between the water surface and the pipe outlet is 400 m. A discharge of 0.11 m3 /s is needed. What must the pressure in the tank be achieve such a flow rate? Assume a turbulent flow.arrow_forwardAir @ 68°C is pumped through a pipe of internal d = 6.4in: If the vol flowrate is set to 6.2 ft3/min, is the flow laminar or turbulent? assume P is atmospheric.arrow_forwardIn a 225 mm pipeline 0.14 m3/s of water are pumped from a reservoir of surface elevation30 over a hill of elevation 50. A pump of what power is required to maintain a pressure of 345kPa on the hilltop if the head lost between reservoir and hilltop is 6 m?arrow_forward
- In a cast-iron piping system of 450 ft length shown below, the rate of flow is 1 cfs at 70°F. Assuming the total head losses for the flow in the system is 10 ft, what is the energy head supplied by the pump E? a. 40 ft b. 50 ft c. 60 ft d. 510 ft e. None of the abovearrow_forwarda piping system (C = 120) consists of 3050 m of 750-mm (AB), 2440 m of 600-mm (BC) and, from C to D, two 400-mm pipes in parallel, each 1830 m long, (a) For a flow of 0.394 m3/s from A to D, what is the lost head? (b) If a valve in one of the 400-mm pipes were closed, what change in lost head wouldoccur for the same flowarrow_forwardPressures at the start and end of a straight horizontal pipe pumping water are measured as 2560337.6Pa and 168693.4Pa, respectively. Calculate the head loss due to friction. (Lemme Know If anything missed)arrow_forward
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