The maximum sinkage of a ship
A ship moving steadily forward in shallow water of constant depth h is usually subject to downward forces and hence squat, which is a potentially dangerous sinkage or increase in draft. Sinkage increases with ship speed, until it reaches a maximum at just below the critical speed √gh. Here we use bo...
| Main Authors: | , |
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| Format: | Journal Article |
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Society of Naval Architects & Marine Engineers
2001
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| Online Access: | http://hdl.handle.net/20.500.11937/31845 |
| Summary: | A ship moving steadily forward in shallow water of constant depth h is usually subject to downward forces and hence squat, which is a potentially dangerous sinkage or increase in draft. Sinkage increases with ship speed, until it reaches a maximum at just below the critical speed √gh. Here we use both a linear transcritical shallow-water equation and a fully dispersive finite-depth theory to discuss the flow near that critical speed and to compute the maximum sinkage, trim angle, and stern displacement for some example hulls. |
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