The invention relates to a ship tail jet flow rectification method, which comprises the following steps of: embedding a rectification assembly on a bilge outer plate of a stern, forming jet seams which are inclined upwards and forwards and are distributed at intervals on the lower part of the bilge outer plate, jetting gas outwards through the jet seams, and automatically floating the jetted gas underwater by utilizing the floating motion of the gas in the water, so that the jet flow of the ship tail is rectified. Along with the forward movement of the ship, gas sprayed out of the gas spraying seams on the two sides upwards floats obliquely backwards to change the flowing characteristic of the stern, the flow field of the tail of the ship is actively controlled, and therefore the flowing structure of the stern is effectively improved, and the propelling efficiency of a propeller is improved; meanwhile, the gas sprayed out of the gas spraying seam can restrain separated flowing of the stern, and the pressure difference resistance generated when the ship sails can be reduced to a certain degree. The ship navigation energy consumption and greenhouse gas emission can be reduced from the two aspects of improving the propulsive efficiency and reducing the navigation resistance, the overall installation is convenient, the needed gas amount is small, and the practicability is good.
本发明涉及一种船舶尾部喷气整流方法,通过在船尾舭部外板上嵌装整流组件,在舭部外板的下部形成向上向前倾斜、并间隔断点布设的喷气缝,经由喷气缝向外喷出气体,利用气体在水中的上浮运动,喷出的气体在水下自主上浮,随着船舶的前行,两侧喷气缝中喷出的气体分别呈斜向后的上漂运动改变船尾流动特征,对船舶尾部流场主动控制,从而有效改善船尾的流动结构,提升螺旋桨的推进效率;同时,从喷气缝喷出的气体能够抑制船尾的分离流动,一定程度上也能减少船舶航行时的压差阻力。本发明能从提升推进效率和减少航行阻力两个方面,减少船舶航行能耗,减少温室气体排放,并且整体安装方便,所需气体量小,实用性好。
Ship tail jet flow rectification method
一种船舶尾部喷气整流方法
2023-08-15
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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