A model test is needed to predict the wave drag on a ship. The ship is 500 ft long and
Chapter 9, Problem 9.72(choose chapter or problem)
A model test is needed to predict the wave drag on a ship. The ship is 500 ft long and operates at 30 ft/s in seawater at 1 0C. The wetted area of the prototype is 25,000 ft2 The model! prototype scale ratio is 1/ 100. Modeling is done in freshwater at 60F to match the Froude number. The viscous drag can be calculated by assuming a flat plate with the wetted area of the model and a length corresponding to the length of the model. A total drag of 0.1 lbf is measured in model tests. Calculate the wave drag on the actual ship.
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