Fox And Mcdonald's Introduction To Fluid Mechanics
9th Edition
ISBN: 9781118921876
Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh
Publisher: WILEY
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Textbook Question
Chapter 9, Problem 130P
A light airplane has 35-ft effective wingspan and 5.5-ft chord. It was originally designed to use a conventional (NACA 23015) airfoil section. With this airfoil, its cruising speed on a standard day near sea level is 150 mph. A redesign is proposed in which the current conventional airfoil section is replaced with another conventional airfoil section of the same area, but with aspect ratio AR = 8. Determine the cruising speed that could be achieved with this new airfoil for the same power.
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Consider the NACA 2412 airfoil discussed . The airfoil is flying at a velocity of 60 m/s at a standard altitude of 3 km . The chord length of the airfoil is 2 m. Calculate the lift per unit span when the angle of attack is 4◦.
Handwriting not allow please
The test results of a NACA 2518 shows:
Angle of attack
0 deg
8 deg
CL
0.045
0.75
If the airfoil is used to construct a wing with a span of 60 ft and a wing area of 450 square feet.
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Chapter 9 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
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