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Unformatted text preview: e. = 5 rad/s, H = 0.5 m, a = 0.1 m f. = 4 rad/s, H = 0.5 m, a = 0.05 m 3) Consider a cylinder of radius, R, and length, L, held in place a distance, d, under the surface of the water by a slender post. The axis of the cylinder is parallel to the sea floor and perpendicular to incoming linear freesurface waves. Given , , a , and H, calculate the added mass forces on the cylinder, F 1 and F 3 , as a function of time. (Hint: the cylinder is not moving, so the simple added mass equation applies.) 4) A packet of waves 1 , k 1 , a 1 2 , k 2 < k 1 2 1 , a 2 # $ % & ’ ( ( ) are send down a wavetank of height, H << 1 , 2 . A second packet is generated seconds later. At what time will the second packet overtake the first? 5) Compare and contrast the vertical FoudeKrylov force to the restoring force due to buoyancy. What causes each force, and why are they different?...
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This note was uploaded on 02/24/2012 for the course MECHANICAL 2.016 taught by Professor Alexandratechet during the Fall '05 term at MIT.
 Fall '05
 AlexandraTechet

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