As shown in Fig. P7.63, a noisemaker B is towed behind aminesweeper A to set off enemy
Chapter 7, Problem 7.63(choose chapter or problem)
As shown in Fig. P7.63, a noisemaker B is towed behind aminesweeper A to set off enemy acoustic mines such as at C. Thedrag force of the noisemaker is to be studied in a water tunnel at a14 scale model (model the size of the prototype). The drag force is assumed to be a function of the speed of the ship, the densityand viscosity of the fluid, and the diameter of the noisemaker.(a) If the prototype towing speed is 3 m/s, determine the watervelocity in the tunnel for the model tests. (b) If the model testsof part (a) produced a model drag of 900 N, determine the dragexpected on the prototype.
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