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Physics, 21.06.2019 22:00
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Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
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Physics, 22.06.2019 11:50
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Physics, 22.06.2019 19:30
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4-62. Water flows into the tank through two pipes. At A the flow is 400 gal/h, and at B it is 200 ga...
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