Duration: 2M 11S Likes: 103 DisLikes: 4 Rating: 9.63 / 10
Views: 46575 Description: The hydrodynamic effect of the bulbous bow on the ship speed.
A bulbous bow is a protruding bulb at the bow (or front) of a ship just below the waterline. The bulb modifies the way the water flows around the hull, reducing drag and thus increasing speed, range, fuel efficiency, and stability. Large ships with bulbous bows generally have a twelve to fifteen percent better fuel efficiency than similar vessels without them.A bulbous bow also increases the buoyancy of the forward part and hence reduces the pitching of the ship to a small degree.
Bulbous bows have been found to be most effective when used on vessels that meet the following conditions:
the waterline length is longer than about 15 metres (49.2 ft)
the vessel will operate most of the time at or near its maximum speed.
Thus, large vessels that cross large bodies of water near their best speed will benefit from a bulbous bow. This would include naval vessels, cargo ships, passenger ships, tankers and supertankers. All of these ships tend to be large and usually operate within a small range of speeds close to their top speed.Bulbous bows are less beneficial in smaller craft and may actually be detrimental to their performance and economy. Thus, they are rarely used on recreational craft like powerboats, sailing vessels, tug boats and yachts.
Note: I'm not the owner of this video, I just take sum clips that demonstrate a very interesting thing in science.
Megastructures - Queen Mary II Documentary National Geographic
bulbous bow construction
bulbous bow how it works
bulbous bow effect
bulbous bow advantage
bulbous bow animation
bulbous bow design and construction
bulbous bow construction of a vessel
what is bulbous bow and its purpose
how a bulbous bow works
why have a bulbous bow
bulbous bow benefits
bulbous bow conversion
bulbous bow cfd
bulbous bow cruise ships
bulbous bow explanation
bulbous bow fuel efficiency
bulbous bow hydrodynamics
bulbous bow in ship
bulbous bow importance
liner’s bulbous bow
largest bulbous bow
bulbous bow queen mary
bulbous bow of a ship
bulbous bow ship
bulbous bow use
vessel bulbous bow
bulbous bow youtube
queen mary 2 bulbous bow
captain queen mary 2 bulbous bow
ship hydrodynamics water waves and asymptotics
ship hydrodynamic forces
ship hydrodynamic resistance
hydrodynamic of ship....
Username: Engineering TAB Added On: 2014 November 19