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Physics, 15.06.2020 05:57 nancysue1975
A drag coefficient Cd is a number with no unit it is used to compare the drag on different cars at different speeds CD=2F/V^n pA Calculate the value of n
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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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A drag coefficient Cd is a number with no unit it is used to compare the drag on different cars at d...
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