The invention discloses an M-shaped bubble drag reduction channel stepped planing boat and a drag reduction method, and mainly relates to the technical field of ship air drag reduction. Comprising a ship body and an auxiliary body, the ship body comprises an M-shaped channel planing boat or is formed by combining a plurality of M-shaped channel planing boats in parallel, an air channel is formed in the bottom of each M-shaped channel planing boat, and vertical rigid side skirts are arranged on the left side and the right side of the bottom of the ship body. An air leading-in opening is formed in the position, above the waterline, in an air channel at the bow of the M-shaped channel planing boat, a hydrofoil is arranged below a step, air leading-out holes are formed in the bottom of the step and/or the upper surface of the hydrofoil, and the air leading-out holes are communicated with the air leading-in opening through a pipeline. An air generating device is not adopted, energy consumption is reduced, a larger microbubble layer covering the tail of the ship can be formed, the microbubble layer and air in the channel form an air layer integrally surrounding the bottom of the ship, and frictional resistance, viscous pressure resistance and wave-making resistance of the ship are greatly reduced.
本发明公开了一种M型气泡减阻槽道断级滑行艇及减阻方法,主要涉及船舶空气减阻技术领域;包括船体及附体,所述船体包括一个M型槽道滑行艇或者由多个M型槽道滑行艇并列组合而成,M型槽道滑行艇的底部设有空气槽道,所述船体的底部的左右两侧均设有垂直刚性侧裙,在所述M型槽道滑行艇船首处的空气槽道内水线以上位置开设空气导入口,断级的下方设有水翼,在所述断级的底部和/或水翼的上表面设有空气导出孔,空气导出孔与空气导入口之间通过管道连通;本发明不采用空气发生装置,减少了能源消耗,能够形成更大的覆盖船尾部的微气泡层,与槽道内的空气形成整体包围船底的空气层,大大降低了船只的摩擦阻力、黏压阻力和兴波阻力。
M-shaped bubble drag reduction channel stepped planing boat and drag reduction method
一种M型气泡减阻槽道断级滑行艇及减阻方法
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Low-speed working condition drag reduction device for square-tail high-speed planing boat
European Patent Office | 2023
|High-speed planing hull drag reduction using tunnels
Tema Archive | 2014
|Hydrodynamic characteristics of low-drag, planing-tail flying-boat Hull
Engineering Index Backfile | 1952
|Bow diversion type bubble drag reduction device and drag reduction method
European Patent Office | 2022
|MULTIHULL STEPPED PLANING BOAT WITH MULTIPLE INDEPENDENT ELASTIC PLANING SURFACES
European Patent Office | 2022
|