Applied Fluid Mechanics: Global Edition
7th Edition
ISBN: 9781292019611
Author: Robert Mott
Publisher: Pearson Higher Education
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Chapter 17, Problem 17.19PP
An antenna in the shape of a cylindrical rod projects from the top of a locomotive. If the antenna is
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An antenna in the shape of a cylindrical rod projects from the top of a locomotive. If the antenna is 42 in long and 0.200 in. in diameter, compute the drag force on it when the locomotive is traveling at 160 mph in still air at -20°F.
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"A luxury sports car has an area of 2 m² and there is a drag coefficient of 0.29 at a speed of 90 km/h. Calculate the drag force exerted on the car at this speed"
Compute for the drag of a rectangular wing with a chord of 4.5 ft and a span of 16 ft. if the dynamic pressure 80 psi. Cd of the wing is 0.030.
Chapter 17 Solutions
Applied Fluid Mechanics: Global Edition
Ch. 17 - A cylinder 25 mm in diameter is placed...Ch. 17 - As part of an advertising sign on the top of a...Ch. 17 - Determine the terminal velocity (see Section 2.6.4...Ch. 17 - Calculate the moment at the base of a flagpole...Ch. 17 - A pitcher throws a baseball without spin with a...Ch. 17 - A parachute in the form of a hemispherical cup 1.5...Ch. 17 - Calculate the required diameter of a parachute in...Ch. 17 - A ship tows an instrument in the form of a 30...Ch. 17 - A highway sign is being designed to withstand...Ch. 17 - Assuming that a semitrailer behaves as a square...
Ch. 17 - A type of level indicator incorporates four...Ch. 17 - Prob. 17.12PPCh. 17 - A bulk liquid transport truck incorporates a...Ch. 17 - A wing on a race car is supported by two...Ch. 17 - Prob. 17.15PPCh. 17 - The four designs shown in Fig. 17.16 for the cross...Ch. 17 - Prob. 17.17PPCh. 17 - Prob. 17.18PPCh. 17 - An antenna in the shape of a cylindrical rod...Ch. 17 - Prob. 17.20PPCh. 17 - Prob. 17.21PPCh. 17 - Prob. 17.22PPCh. 17 - Assume that curve 2 in Fig. 17.5 is a true...Ch. 17 - Prob. 17.24PPCh. 17 - Prob. 17.25PPCh. 17 - A small, fast boat has a specific resistance ratio...Ch. 17 - Prob. 17.27PPCh. 17 - Assume that Fig. 17.11 shows the performance of...Ch. 17 - Calculate the total drag on an airfoil that has a...Ch. 17 - Prob. 17.30PPCh. 17 - Prob. 17.31PPCh. 17 - Prob. 17.32PPCh. 17 - Prob. 17.33PP
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- B2 is flying at an altitude of 43,000 ft and a speed of 400 KTAS under standard atmospheric conditions. If the average aerodynamic chord is 39,6 ft, calculate the Reynolds number and the average % aerodynamic chord present on the wingarrow_forwardCalculate the lift and drag of the wing (full span) shown below (half span) if it is flying at 25000 ft. with an airspeed of 260 ft/s with a wing span of 30ft. Let Cl = 0.98 and Cd= 0.064. English system not metric.arrow_forwardThe airplane as described has a stalling speed at sea level of 100 mph at the maximum take-off weight of 15,900 lb. The ambient air density at standard sea level is 0.002377 slug/ft3. Calculate the value of the maximum lift coefficient for the airplane.arrow_forward
- Thank you!! An aircraft weighing 65.2 kN when empty has a wing plan form area A of 62.3 m^2 . It cruises at a velocity of 900 km/h and a 4.0 degree angle of attack and altitude of 8500m. Also, the wing characteristics of the airfoil are shown. (a) Determine the allowable weigh of the cargo (b) and if the wingspan s is 20m determine the induce drag coefficient C_Di.arrow_forwardCompute for the lift force acting on a wing with an area of 56 sq. ft., velocity of 75 ft/s at an altitude of 5000 ft. Cl of the wing is 0.75. Calculate the drag of a certain wing with an area of 20 sq. meters , velocity of 75 m/s at an altitude of 2000m . Cd of the wing is 0.05. Compute for the drag of a rectangular wing with a chord of 4.5 ft and a span of 16 ft. if the dynamic pressure 80 psi. Cd of the wing is 0.030.arrow_forwardA truck having projected area of 6.5 m² and travelling at 72 km/h has a total resistance of 1.6 kN. Out of this resistance, 30% is due to rolling, 20% due to surface friction and rest is due to drag. Calculate the coefficient of drag if specific weight of air is 12 N/m^3.arrow_forward
- A 2.4-in-diameter smooth ball rotating at 500 rpm is dropped in a water stream at 60°F flowing at 4 ft/s. Determine the lift and the drag force acting on the ball when it is first dropped in the water.arrow_forwardA flat plate has a surface roughness of 0.1 mm, a width of 3 m, and a length of 2 m. Air with a velocity of 3 m/s flows over the plate. a. Calculate the drag exerted on the plate if the flow at the leading edge of the plate is laminar. b. Calculate the drag exerted on the plate if the flow at the leading edge of the plate is immediately tripped to turbulence due to the presence of an exposed boltarrow_forwardNote: Don't copy from other websites solution, those are wrong solutions. The trailer travels at U = 39 mi/h. The air is still and has a temperature of 60°F. Assume the surfaces are smooth and flat Consider both laminar and turbulent boundary layers. (Figure 1) Part A :Determine the drag acting on each side of the trailer truck.arrow_forward
- The wing loading on an airplane is defined as the aircraft weight divided by the wing area. An airplane is cruising with a wing loading of 2500 Pa. The lift coefficient and drag coefficient are 0.30 and 0.06, respectively. Calculate the drag force if the wing planform area is 12 m2. Assume that the air density is unknown and not given.arrow_forwardKindly give me both right solutions with clear calculations The drag polar of a glider is given by CD=0.01+0.022CL2 . If it is launched from a height of 400m in still air. Please determine:(a) the maximum lift to drag ratio ??;(b) the greatest possible ground distance it can cover.arrow_forwardA propeller-driven aircraft has an in-flight weight of 4,105 lb (equivalent to a mass of 1,862 kg) and is cruising at a true airspeed of 120 kts. The lift-to-drag ratio of the aircraft is 8.2. If the propeller efficiency, ηp, is 0.8, then how much brake power is required for flight? Work through this problem in both USC and SI units.arrow_forward
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