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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 free-surface 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 Foude-Krylov 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