Static buoyancy water suction type new concept ship

Abstract

The invention discloses a static buoyancy water suction type new concept ship. By means of the negative-pressure water suction of a water suction end of a water jet pump in operation, the navigational drained water is sucked, so that the flow rate and the flow velocity of the drained water are reduced, the interfering energy for a free water surface is reduced, and the wave-making resistance to the ship is reduced. If the performance indexes (flow and lift) of the water jet pump are matched with the navigational water discharge and the resistance of the ship, the navigational drained water can be mostly sucked by the water jet pump, the flow rate and the flow velocity interfering with the free water surface are lower, and the wave-making resistance is reduced. That is, the water suction type new concept ship is an effective measure for overcoming the difficulty in increasing the navigational speed of a drainage type ship based on the Archimedes buoyancy principle. The basic structure of an underwater ship body of the water suction type ship is shown in figure 1, and consists of a main ship body (1), a lower plate body (2) and support side walls (3); and a space among the main ship body, the lower plate body and the support side walls is a working space for water jet propelling devices left in the underwater ship body, and comprises a water suction expansion port of the water jet pump and a conveying pipe.

Description

technical field [0001] In the process of developing high-performance ships, it has long been difficult for a long time to be troubled by the increase in the ratio of wave resistance and speed to the sixth power. The new concept of water-absorbing ships created based on the principle of water absorption uses the negative pressure of water jet pumps to absorb The function is to process the navigation displacement through absorption feedback loop, so that the navigation displacement that forms the wave-making resistance will decrease due to the reduction of the flow velocity. If the navigation displacement is all absorbed, the wave-making resistance will become zero due to the disappearance of the flow velocity. The theory shows that the water-absorbing new concept ship is an effective design concept for reducing and eliminating wave-making resistance, and it will pave the way for the development of high-performance ships to higher speeds. Background technique [0002] Conventi...

AI Technical Summary

Problems solved by technology

Although these measures have improved the performance of ships to some extent, they are still far from the expected indicators required by social development. The reason for the dilemma in the development of high-performance ships is that the final effect of the technical measures adopted is only to reduce the flow of navigation drainage. It can not affect the change of drainage flow rate, so it cannot completely eliminate the wave-making resistance

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