Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 16, Problem 16.4PP
A highway sign is being designed to withstand winds of
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The spoiler, shown in figure 1, will be fitted at the back end of a stock car to give it downforce on the track. The pressure distribution and average shear stress on the top surface are given and the data on the bottom surface can be neglected. The car can reach a maximum speed of 270 km/h on the track. The spoiler has a length and a widthof 1.2 m and 0.3 m, respectively. The density of the air is 1.2 kg/m2. Calculate the lift and drag coefficients of the spoiler.
Chapter 16 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 16 - Calculate the force required to hold a flat plate...Ch. 16 - What must be the velocity of flow of water from a...Ch. 16 - Calculate the force exerted on a stationary curved...Ch. 16 - A highway sign is being designed to withstand...Ch. 16 - Compute the forces in the vertical and horizontal...Ch. 16 - Figure 16.13 O shows a free stream of water at 180...Ch. 16 - Compute the horizontal and vertical forces exerted...Ch. 16 - In a plant where hemispherical cup-shaped parts...Ch. 16 - A stream of non-flammable oil (sg 5 0.90) is...Ch. 16 - A 2 -in-diameter stream of water having a velocity...
Ch. 16 - Figure 16.17 O represents a type of flowmeter in...Ch. 16 - Water is piped vertically from below a boat and...Ch. 16 - A 2 -in nozzle is attached to a hose with an...Ch. 16 - Seawater (sg 5 1.03) enters a heat exchanger...Ch. 16 - A reducer connects a standard 6 -in Schedule...Ch. 16 - Calculate the force on a elbow attached to an in...Ch. 16 - Calculate the force required to hold a 90 elbow in...Ch. 16 - Calculate the force required to hold a 180 close...Ch. 16 - A bend in a tube causes the flow to turn through...Ch. 16 - A vehicle is to be propelled by a jet of water...Ch. 16 - A part of an inspection system in a packaging...Ch. 16 - Shown in Fig. 16.20 is a small decorative wheel...Ch. 16 - For the wheel described in Problem 16.22. compute...Ch. 16 - A set of louvers deflects a stream of warm air...Ch. 16 - Prob. 16.25PPCh. 16 - Prob. 16.26PPCh. 16 - Figure 16.22 shows a device for clearing debris...Ch. 16 - Prob. 16.28PPCh. 16 - Figure 16.23 is a sketch of a turbine in which the...Ch. 16 - Repeat Problem 16.29 with the blade rotating as a...Ch. 16 - Repeat Problem 16.29, except with the blade...
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- Calculate the horizontal and vertical forces acting on the curved gate and calculate the line of action of the horizontal forces if the gate width is 2marrow_forwardA spherical buoy is moored to a river bed. The river flows from left to right. Because of flow, the line that ties the buoy is tilted 5° from the upright position, as shown in the graph to the right. At this location the top surface of the buoy is just below the water surface. The effective specific gravity of the buoy is 0.65. The diameter of the buoy is 2 ft and the line is 4 ft in length. What is the force acting on the line? What is the horizontal force acting on the buoy that comes from the flow? Surface Flow 85°arrow_forwardCalculate the power of the wind at a site that has wind speed of 12 m/s, air density of 1.2 kg/m3. The wind turbine at the site has a rotor diameter of 180 m. What is the maximum power that can be delivered by the wind turbine? (Assume π=3,14)arrow_forward
- Problem 1 (refresher) Calculate the temperature, pressure and density at an altitude of 6000 m assuming ISA atmosphere.arrow_forwardAir at a temperature of 15°C and a pressure of 1 Atm at a speed of 100 km / h figure below-a da it crashes into the visible water tower. Free at Figure-b to prevent Tower toppling as seen in the object diagram, the moment(M)that the base of the tower must resist calculate. The resistance coefficient for the cylinder part is 0.7, the resistance coefficient for the sphere part is 0.3 you may take.arrow_forwardThe spoiler, shown in figure 1, will be fitted at the back end of a stock car to give it downforce on the track. The pressure distribution and average shear stress on the top surface are given and the data on the bottom surface can be neglected. The car can reach a maximum speed of 270 km/h on the track. The spoiler has a length and a width of 1.2 m and 0.3 m, respectively. The density of the air is 1.2 kg/m?. Calculate the lift and drag coefficients of the spoiler. Tave = 500 N/m2 P= 1.5 kN/m? P= 0.15 kN/m² U Figure 1arrow_forward
- A pilot flies at 850 mb level over a region with reported sea-level pressure of 1000 mb and temperature of 0 degrees celcius, and temperature decreases with height at 6.5 degrees celcius/km over the region, calculate the altitude of the airplane. Show the derivation of the altitude formular starting from hydrostatic balance.arrow_forwardas shown in the Figure below, with A dam has a parabolic shape z/z, =(x/x,) x, = 3m and z, =7.5m. The fluid is water, p =1000 kg/ m, and atmospheric pressure may be omitted. The width of the dam is 50 m. Compute the forces FH and Fy on the dam and their line of action. Compute the resultant force FR and its line of action. Use basic principles and show the detail of your solution. Fy FHarrow_forwardFind the fluid force on an equilateral triangle facing down with a width of 2 feetarrow_forward
- calculate drag forcearrow_forwardAn aircraft is required to climb with 10° of climb angle. The aircraft has a mass of 30,000 kg and produces 50,000 N of drag. Assume zero angle of attack and zero thrust setting angle. How much lift this aircraft must generate?arrow_forward2. An automobile and its load weigh 22.5 KN and the center of gravity is 0.60 m above ground level and midway between the front and rear wheels, 2.44 m apart. The car is brought to a complete stop from a speed of 96.5 km/hr in 10 seconds by means of the breaks. Find the normal pressures on each of the front and rear wheels. Let NF = normal pressure on one front wheel REF = reversed effective force = a NR = normal pressure on one rear wheel REF 0.60 m R F 1.22 m 1.22 m 2NR 2NFarrow_forward
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