(Solution Download) A towboat for river barges is tested in a towing tank. The towboat model is built at a scale ratio..


A towboat for river barges is tested in a towing tank. The towboat model is built at a
scale ratio of 1:13.5. Dimensions of the model are overall length 11.1 ft, beam 3.11 ft,
and draft 0.62 ft. (The model displacement in fresh water is 1200 lb.) Estimate the
average length of wetted surface on the hull. Calculate the skin friction drag force on!
the prototype at a speed of 8 mph relative to the water.

 







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