System Dynamics
3rd Edition
ISBN: 9780077509125
Author: Palm
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 7.13P
Derive the expression for the linearized resistance due to orifice flow near a reference height hr.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1.Shear stress velocity, u * has the link with mean flow velocity, u in a pipe for Re > 2300 . Calculate u* if u= 2 m/s with friction factor, f=0,001.
ANSWER: u* = 0,045 m /s
The volume flow rate of water is 662,73 liters/min. Calculate the maximum length of the pipe [m], which can be
used without cavitation? (NOTE: Take water temperature as 10 °C)
An air-conditioning system is designed to have a ductwith a rectangular cross section 1 ft by 2 ft, as shown. Duringconstruction, a truck driver backed into the duct and made it atrapezoidal section, as shown. The contractor, behind schedule,installed it anyway. For the same pressure drop along the pipe,what will be the ratio of the velocity in the trapezoidal duct tothat in the rectangular duct? Assume the Darcy-Weisbach resistance coefficient is the same for both ducts.
Chapter 7 Solutions
System Dynamics
Ch. 7 - Prob. 7.1PCh. 7 - Refer to the water storage and supply system shown...Ch. 7 - Prob. 7.3PCh. 7 - In Figure P7.4 the piston of area A is connected...Ch. 7 - Refer to Figure 7.1.4a. and suppose that p\ — p2=...Ch. 7 - Pure water flows into a mixing tank of volume V =...Ch. 7 - Consider the mixing tank treated in Problem 7.6....Ch. 7 - Derive the expression for the fluid capacitance of...Ch. 7 - Prob. 7.9PCh. 7 - Prob. 7.10P
Ch. 7 - 7.11 Derive the expression for the capacitance of...Ch. 7 - Air flows in a certain cylindrical pipe 1 m long...Ch. 7 - Derive the expression for the linearized...Ch. 7 - Consider the cylindrical container treated in...Ch. 7 - A certain tank has a bottom area A = 20 m2. The...Ch. 7 - A certain tank has a circular bottom area A = 20...Ch. 7 - The water inflow rate to a certain tank was kept...Ch. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - In the liquid level system shown in Figure P7.20,...Ch. 7 - The water height in a certain tank was measured at...Ch. 7 - Derive the model for the system shown in Figure...Ch. 7 - (a) Develop a model of the two liquid heights in...Ch. 7 - Prob. 7.24PCh. 7 - Design a piston-type damper using an oil with a...Ch. 7 - Prob. 7.26PCh. 7 - 7.27 An electric motor is sometimes used to move...Ch. 7 - Prob. 7.28PCh. 7 - Prob. 7.29PCh. 7 - Figure P7.3O shows an example of a hydraulic...Ch. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - (a) Determine the capacitance of a spherical tank...Ch. 7 - Obtain the dynamic model of the liquid height It...Ch. 7 - Prob. 7.40PCh. 7 - Prob. 7.41PCh. 7 - Prob. 7.42PCh. 7 - Prob. 7.43PCh. 7 - Prob. 7.44PCh. 7 - Prob. 7.45PCh. 7 - The copper shaft shown in Figure P7.46 consists of...Ch. 7 - A certain radiator wall is made of copper with a...Ch. 7 - A particular house wall consists of three layers...Ch. 7 - A certain wall section is composed of a 12 in. by...Ch. 7 - Prob. 7.50PCh. 7 - Prob. 7.51PCh. 7 - A steel tank filled with water has a volume of...Ch. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Compute the average speed of water in a pipe with a diameter of 5.0 cm and delivering 2.5 m3 of water per hour. Select one: 0.25 m/s 0.13 m/s 0.03 m/s 0.35 m/sarrow_forwardFor each flow speed setting calculate the air volumetric flow rate, Q, using the Venturi manometer. assume inviscid flow.arrow_forwardA2: FLUID FLOW, FLOW RATE & PRESSURE DROPProblem:4. Determine the average velocity in m/s for water flow in a 2 in diameter pipe, Schedule 40 chlorinated polyvinyl chloride (CPVC) pipe (2.375 in outside diameter and 2.047 in inside diameter) carrying cold water at a volumetric flow rate of 40 gpm.arrow_forward
- .A venturi meter is used to measure liquid flow rate of 7500 litres per minute. The difference in pressure across the venturi meter is equivalent to 8 m of the flowing liquid. The pipe diameter is 19 cm. Calculate the throat diameter of the venturi meter. Assume the coefficient of discharge for the venturi meter as 0.96arrow_forwardDerive an expression for time of emptying a tank through a pipe at its bottom,accounting for major and minor lossesarrow_forwardTwo pipes in a series have a flow rate of 50 L/s. The pipe upstream is 300 mm and reduced downstream to 150 mm. Determine the velocities for both diameters in m/s. Consider the centerline of the pipes along a horizontal datum reference. Ignore losses.arrow_forward
- A horizontal air duct reduces in cross-sectional area from 0.070 m² to 0.020 m². Assuming no losses, what pressure change will occur when 6.67 N/s of air flows? (Use y = 31.4 N/m for pressure and temperature conditions involved.)arrow_forwardA2: FLUID FLOW, FLOW RATE & PRESSURE DROPProblem:5. Determine the average velocity in ft/s for water flow in a 20 mm diameter copper tube (21.4 mm outside diameter and 19.9 mm inside diameter) carrying water at a volumetric flow rate of 40 L/min.arrow_forwardA large tank is partly filled with oil (s.g.= 0.85), the air space above being under pressure. A 50 mm ϕ hose connected to the tank discharges on the roof of a building 15.25 m above the level in the tank. The friction loss is 5.50 m. What air pressure in KPa must be maintained in the tank to deliver 0.0124 m3/s on the roof?arrow_forward
- 1. Water flows at a rate of 65 Li/min in a steel pipe of 45 mm diameter, K = 0.045x10-3 m, μ = 0.001 K/m.s. Determine the type of flow, the friction coefficient, and the head loss due to friction per meter length of the pipe using: (a) Moody chart and (b) using smooth pipe formula. 2. Determine the size of galvanized steel pipe needed to carry water for a distance of 180 m at 85 Li/s with a head loss of 9.0 m. Take ε = 0.15 mm.arrow_forwardA pump test reports the section pressure at a pump inlet to be 20 kPa below atmosphere. The discharge pressure at a point 1,147 mm above the inlet is 520 kPa. If the volume flow rate of water in the system is 58 L/min, calculate the power, in Watts, delivered by the pump to the fluid.arrow_forwardA pump is installed to deliver water from a reservoir of surface elevation zero, to another of elevation 290 ft. The 10 inch-diameter suction pipe (f=0.022) is 90 ft long and the 8-in-diameer discharge pipe (f=0.028) is 4900 ft long. The pump characteristic is defined by hp= 365-20Q2 where hp, the pump head, is in feet and Q is in cubic feet per second. What is the rate at which the pump will deliver the water?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Power Plant Explained | Working Principles; Author: RealPars;https://www.youtube.com/watch?v=HGVDu1z5YQ8;License: Standard YouTube License, CC-BY