Hull line of a large liquefied gas carrier

Abstract

The invention discloses a hull line shape of a large-scale liquefied gas transport ship. The hull line shape includes a bow, an inflow section, a parallel midbody, an outflow section and a tail from the bow to the stern. In the present invention, the forward vertical line is shifted backward under the requirement of keeping the total length constant; under the precursor of the cargo hold arrangement, the waterline of the inflow section matching it is designed, which effectively reduces the wave-making resistance; the bulbous bow is added The length, width and height fully exert the effect of the bulbous bow, effectively reducing the bow wave; adjusting the position of the engine room, effectively improving the return flow, making the flow field of the rear body smoother and the accompanying flow more uniform; the hull line shape of the present invention The cabin capacity has been increased by 1,000 cubic meters, and the received power is reduced by 5% under the design conditions of the original line type compared with the original line type.

Description

technical field [0001] The invention relates to the field of ships, in particular to a hull line shape of a large liquefied gas carrier. Background technique [0002] At present, in the domestic market, the stealth bulb VLGC of Jiangnan Shipyard is the most mature large-scale liquefied gas carrier. Compared with ships of the same type, it is found that the performance index of the ship of this design is better, and the displacement of the line type commonly used in this field is often Larger, due to the introduction of the new IGC code for cabin capacity layout requirements, the old line type cannot meet the requirements and needs to be improved in the new line type. Linetype optimized angle boosts performance metrics. Contents of the invention [0003] The purpose of the present invention is to provide a hull line type of a large liquefied gas carrier in order to solve the above problems. The hull line type of the present invention has a capacity of 1000 cubic meters. Co...

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Problems solved by technology

[0002] At present, in the domestic market, the stealth bulb VLGC of Jiangnan Shipyard is the most mature large-scale liquefied gas carrier. Compared with ships of the same type, it is found that the performance index of the ship of this design is better, and the displacement of the line type commonly used in this field is often Larger, due to the introduction of the new IGC code for cabin capacity layout requirements, the old line type cannot meet the requirements and needs to be improved in the new line type. Linetype optimization for angle boost performance metrics

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