The maximum speed of the rig with the fairing installed to the tractor.
Answer to Problem 108P
Explanation of Solution
Given information:
Concept used:
Calculation:
After installing the fairing,
By solving, we get
Conclusion:
The maximum speed of the rig with the fairing is
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Chapter 11 Solutions
FLUID MECHANICS FUNDAMENTALS+APPS
- An airplane has a mass of 50,000 kg (without load), a wing area of 360 m2 , a maximum lift coefficient of 3.25, and a cruising drag coefficient of 0.03 at an altitude of 12,000 m. Taking the density of standard air as ρ1 = 1.225 kg/m3 at sea level and ρ2 = 0.312 kg/m3 at 12,000 m altitude. (a) Generate a plot of the safe takeoff speed at sea level Vs the load carried by airplane (ranging from 0 kg to 20,000 kg of load). (b) Determine the power that must be delivered by the engines for a cruising speed of 800 km/hr.arrow_forwardThe drag polar equation of a light airplane in clean configuration can be written as Cp = 0.358 + 0.0405 C₁². It has a weight of 18,681 N. The wing area is 14.41 m². Calculate the minimum power required in watts. (Round off answer with no decimal places, No units, No commas) Answer given: 1461792 A 5,000 lbs. aircraft has an excess power of 75 hp at sea level. If the service ceiling is 3,657.6 m, determine the time to climb from sea level to absolute ceiling in minutes. (Round off answer with no decimal places. No units, No commas) Answer given: 17arrow_forwardA group of researchers from UMP conducted a project collaboration with an aircraft company to develop a small aircraft. The aircraft is designed to carry up to 2800 kg of total mass. The wing area of the aircraft is 30 m2. During takeoff, the lift coefficient of the aircraft is 0.45. Meanwhile during cruising, the drag coefficient of the aircraft is 0.035. ii. Determine the load of the wingarrow_forward
- The drag coefficient for a car with a frontal area of 26 ft? is being measured in an 8 ft x 8 ft wind tunnel. The density of air under the test conditions is 2.4 x 10 3 slugs/ft, When the air flow rate is, 500,000 ft/min, the drag force on the car was measured to be 170 lb. The drag coefficient under the test conditions is most nearly O 0.30 O 0.32 O 0.28 O 0.34arrow_forwardA jet airplane weighs 160,000 N and has a zero-lift drag coefficient of 0.008 and a wing area of 42 m2. At 100 m/s at sea level, the rate of climb is 11.5 m/s. The thrust developed by the engines is equal to 27,000 N. Determine the maximum rate of climb and the corresponding flight speed at sea level . [Answer: 21.6013 m/s and 214.5577 m/s]arrow_forwardThe 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_forward
- A group of researchers from UMP conducted a project collaboration with an aircraft company to develop a small aircraft. The aircraft is designed to carry up to 2800 kg of total mass. The wing area of the aircraft is 30 m2. During takeoff, the lift coefficient of the aircraft is 0.45. Meanwhile during cruising, the drag coefficient of the aircraft is 0.035. i. Analyze the takeoff speed of the aircraft at standard atmospheric conditions ( = 1.225 kg/m3 )arrow_forwardA streamlined experimental solar car has a frontal area of 0.48 m² and an expected coefficient of drag of 0.12. The car and driver have a total mass of 200 kg. What is the maximum speed that could be expected if the maximum power available from its electric motor is 350 W? Assume a rolling resistance coefficient of 0.015. Take the density of air as 1.21 kg/m³.arrow_forwardThe rectangular wings of a microlight aircraft have a combined spanwise length of 9.144 m and streamwise (direction of air flow) width of 0.9144 m The wings have a coefficient of form drag of 0.01 and a lift coefficient of 0.3 in cruise. When cruising at a speed of 150km/h and altitude of 3,000 feet, the temperature and absolute pressure of the atmospheric air are 5ºC and 90 kPa, respectively. a) Calculate the density of the air at cruising altitude. b) Calculate the form drag on the wings. c) Calculate the Reynolds number of the wings. d) Calculate the skin friction drag on the wings. e) If the fuselage of the microlight is spherical with a diameter of 1m and the total drag of the aircraft is represented by the contributio combined, and assuming the skin friction drag is negligible for the fuselage only, calculate the combined total drag force. fuselage and wings f) Calculate the power required to overcome total drag in cruise, using the value calculated in part e). g) Calculate the…arrow_forward
- A new car is introduced and has a drag coefficient of 0.30 and a frontal area of 1.95 sqm and is traveling at 195 km/h. How much power is required to overcome aerodynamic resistance if air density is 1.325 kg/m^3?arrow_forwardA light truck weighs 3,300 lb and is rated at 30 miles per gallon for 52 mph highway driving on level ground. Under those conditions, the engine must overcome air resistance, rolling resistance, and other sources of friction. Give your answers in the units shown. (a) The coefficient of drag is 0.55 at 52 mph, and the truck's frontal area is 28 ft?. What is the drag force on the truck? (Express your answer using three significant figures.) F = lb (b) How much power must the engine produce at 52 mph just to overcome air resistance? (Express your answer using three significant figures.) P = |hp (c) In part (b) how much gasoline would be consumed each hour (neglecting other frictional effects)? (Express your answer using three significant figures.) V = galarrow_forwardAnswer correctly. Here is the Translation. "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"arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning