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The primary formula used to calculate the displacement of a ship is based on its physical dimensions and block coefficient. The block coefficient is a dimensionless number that describes how closely the shape of a ship resembles a rectangular block.
Calculation Shipboard stability computer programs can be used to calculate a vessel's displacement. The process of determining a vessel's displacement begins with measuring its draft. This is accomplished by means of its "draft marks".
Draw the transverse and longitudinal wave patterns when a displacement ship moves through the water. Define Reynolds number with a mathematical formula and explain each parameter in the Reynolds equation with units. Be qualitatively familiar with the following sources of ship resistance:
A displacement hull is a boat hull design that uses buoyancy to support its weight. It lies partially submerged and displaces water when moving, hence its name. The amount of water it displaces is equal to its weight.
Boat geometry terminology. Here are definitions for the terms shown in Figure 9-1 and for some other commonly used nautical terminology: Beam: The width of the boat. Also called the breadth. Bow: The front or forward part of the boat. Displacement: The weight of the water displaced by the boat.
So let’s review and see if we can make sense of displacement in terms of numbers and equations. You can calculate an object's displacement by subtracting its original position, d 0 , from its final position d f .
The prismatic coefficient is the ratio of actual underbody volume to the volume of a prism having a length equal to the DWL, and a section equal to the boat's maximum sectional area. The prismatic coefficient provides an indication of the distribution of displacement.
