The invention relates to a square-tail high-speed planing boat low-speed working condition resistance reduction device which comprises an installation panel and a water touch panel, the whole resistance reduction device is fixed to a stern transom plate of a square-tail high-speed planing boat through the installation panel, the water touch panel is installed behind the installation panel, and the water touch panel is of a convex curved surface structure which is bilaterally symmetrical about the longitudinal section of the water touch panel. The lower edge contour and the left and right edge contours are all connected with the stern transom plate to enable the resistance reduction device to form a structure with a sealed bottom, and a backward inclined part and a vertical part are sequentially arranged upwards from the lower edge contour. The resistance reduction device can effectively improve the flow separation phenomenon of a wake flow field behind the stern transom plate under the low-speed working condition, reduce energy loss caused by unstable flow of a wake flow vortex system, fully recycle forward effective momentum in the circulating vortex area in the flowing process, improve the sailing posture of a ship and improve the sailing efficiency of the ship. The sailing resistance performance of the square-tail high-speed boat under the low-speed working condition is comprehensively improved, and the resistance performance of the square-tail high-speed boat under the medium-high-speed working condition is not affected by installation of the resistance reduction device.
本发明涉及一种方尾高速滑行艇低速工况减阻装置,包括安装面板和触水面板,减阻装置整体通过安装面板固定于方尾高速滑行艇的艉封板上,触水面板安装于安装面板后方,触水面板为关于自身中纵剖面左右对称的外凸曲面结构,其下边缘轮廓以及左右边缘轮廓均与艉封板相接以使减阻装置形成底部密封的结构,自下边缘轮廓向上依次为后倾部和竖直部。本发明减阻装置可有效改善低速工况艉封板后方尾流场流动分离现象,减少尾流涡系的不稳定流动所引起的能量损失,充分回收循环涡流区域内流体流动过程中向前的有效动量,并改善船艇航行姿态,综合提高方尾高速艇低速工况的航行阻力性能,且减阻装置的安装不影响其在中高航速工况下的阻力性能表现。
Low-speed working condition drag reduction device for square-tail high-speed planing boat
方尾高速滑行艇低速工况减阻装置
2023-11-17
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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