Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 17, Problem 17.31PP
To determine
(a)
Total lift and drag force exerted on the airfoil.
To determine
(b)
Total lift and drag force exerted on the airfoil.
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Chapter 17 Solutions
Applied Fluid Mechanics (7th 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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- A three-blade propeller of a diameter of 1.5 m has a rotational speed is 60 Hz, the activity factor AF is 200 and its static torque coefficient is 0.05. The propeller's integrated lift coefficient is 0.3.arrow_forward9. What the coefficient of efficiency of the horizontal tail counts ? 1,0 1,0 M 8.arrow_forwardThe mean camber line of a thin airfoil is given by: y 0.2 0.1 a) Calculate the zero-lift angle. b) compute the lift coefficient and the moment coefficient about the leading edge for a = 3°.arrow_forward
- The nominal power of the wind turbine is 3MW at wind speed 11.5m/s, generator efficiency is 94%, gear box efficiency is 0.75, power coefficient of blades is 0.59. What would be the diameter of the rotorarrow_forwardWhich of the following best describes pressure drag on a well designed aerofoil? O a. It is equal to the skin drag after stall O b. It is larger than the skin drag after stall O c. It is larger than the skin drag before stall O d. It is equal to the skin drag before stall.arrow_forward20. A centrifugal pump has an impeller 45 cms in diameter running at 450 rpm. The discharge at inlet is entirely radial. The velocity of flow at outlet is 1-2 m/sec. The vanes are curved back- wards at outlet at 30 to the wheel tangent. If the discharge of the pump is 015 cumeo calculate the impeller horse power and the torque on the shaft. (18-42 hp; 29-31 kgm)arrow_forward
- Calculate the relative velocity and relative angle if Vt = 14.66 and the wind speed = 7 m/s. %3D 37.24 m/s, 57.5 degrees E none of these 24.19 m/s.34.24 degrees 16.25 m/s, 64.48 degreesarrow_forwardCalculate the driveshaft power and flight size for a 18.3 m flight conveyor to transport 36 tonnes coal per hr at 30.5 m/min, inclination 30°. Effective flight are, 30% of surface area. Allow 22.3 kg per m for strand weight. Standard flight sizes are 30.5 cm, 38.1 cm, 45.7 cm 61 cm wide and 10.2 cm, 15.2 cm, 20.3 cm, 25.4 cm high.arrow_forward3. Calculate the speed ratio, S, for a satellite moving at 8 km/s, assuming that the ambient atmospheric species is 79 % molecular nitrogen, 21 % O2, and the temperature of the gas is 300 K. Re-do the calculation for a gas temperature of 3,000 K.arrow_forward
- A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m. The runner blade angles are ?2 = 71.4° and ?1 = 15.3° at the turbine inlet and outlet, respectively. The runner rotates at n. = 160 rpm. The volume flow rate at design conditions is 80.0 m3/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (MW) and required net head (m).arrow_forward3. The airfoil has an angle of attack of 4 deg. What is the lift curve slope if the angle of attack measured from zero lift is -2 deg., lift/span is 1000 N/m with a speed of 200 m/s at 12,000 m. Assume c= 3 m.arrow_forwardMultirotor copters (e.g., drones) use multiple fixed propellers to create a downdraft. The momentum of the downdraft must be balanced by the lift force of the drone. Consider plans to fly the same drone to plan a bridge installation in the mountains of Colorado (elevation 7000 ft) to a pipeline installation over the Allegheny mountains in Pennsylvania (elevation 2000 ft). Assuming the drone is capable of flying in each situation and that fair weather exists in each situation, which would differ between the power requirements in these scenarios?arrow_forward
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