(See The Wide World of Fluids article Modeling Parachutesin a Water Tunnel, Section
Chapter 7, Problem 7.53(choose chapter or problem)
(See The Wide World of Fluids article Modeling Parachutesin a Water Tunnel, Section 7.8.1.) Flow characteristics for a 30-ftdiameterprototype parachute are to be determined by tests of a1-ft-diameter model parachute in a water tunnel. Some data collectedwith the model parachute indicate a drag of 17 lb when thewater velocity is 4 ft/s. Use the model data to predict the drag onthe prototype parachute falling through air at 10 ft/s. Assume thedrag to be a function of the velocity, V, the fluid density, , and theparachute diameter, D.
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