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Unformatted text preview: conditions). The free stream velocity is 1m/s in the +x direction. The pressures reported in problem 1 are gage pressures in Pa, and the shear stresses are in Pa. Determine the free stream dynamic pressure Determine the lift and drag coefficients (based on chord and unit width) AAE333 Fall 2009 3. Suppose you are given a velocity V, a density ρ and a viscosity µ Find a combination of the three that has units of time Find a combination of the three that has units of length Find a combination of the three that has units of mass Consider air at standard conditions, moving with a velocity of 1 m/s. What is the characteristic time in seconds, the length in meters and the mass in kg? You should note that these are all extremely small quantities by normal standards. They represent the scale at which viscosity would be dominant (viscosity dominates the life of an amoeba!)...
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 Fall '09
 Force, Mass, Shear Stress, Fundamental physics concepts, free stream, net resultant forces

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