Greenlight wrote:Aero drag force is calculated by using the following equation:
F = 1/2 ro Cd A V^2
ro is the density of the fluid (air). A typical value is 1.21 kg/m^3 or 0.765 lb/ft^3
Cd is the drag coefficient. This value is dependent on the shape of the object. For a sports car the value is typically about 0.28 to 0.35.
A is the cross section area of the object, when viewed from the direction of the fluid interacting on the object. For a sports car the value is typically about 20 ft^2.
V is the relative velocity of the fluid to the object.
Make sure you use the correct units in your calculations (i.e. don't use MPH, use ft/sec).
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