The invention relates to a pod thruster boundary layer absorption type vortex eliminating device that is installed on a pod thruster. The device is characterized by comprising: a vortex suction module, a flow guide channel module and a water flow propelling module; according to the invention, the vortex eliminating device is arranged in the boundary laminar flow crushing area on the nacelle; whenwater flow is pumped to the rear flow guide channel through the front flow guide channel, the effects that a boundary layer to be broken and formed vortexes are sucked in, a low-pressure area at the tail of the nacelle is filled up, the resistance of the nacelle is reduced, and the hydrodynamic performance and the propelling efficiency are improved are achieved, the rear flow guide pipe is provided with the partition plate with the Y-shaped or cross-shaped section, and lateral force brought by a water flow propelling module is reduced. The adaptive capacity of the pod propeller to different hydrodynamic environments is improved on the body, the stability of the pod propelling system is improved, the pod propelling system is more convenient and safer, the navigation cost is reduced on the whole, and the hydrodynamic performance of the pod in work is effectively improved.
本发明涉及一种吊舱推进器边界层吸收式消涡装置,该装置安装在吊舱推进器上;其特征在于:包括涡流吸入模块、导流通道模块和水流推进模块;本发明中通过在吊舱上的边界层流破碎区设置消涡装置,将水流通过前导流通道泵向后导流通道,达到吸入即将破碎的边界层和形成的涡流,并填补吊舱尾部的低压区,降低吊舱阻力,改善水动力性能和推进效率的效果,后导流管设置截面呈Y型或十字型的隔板,减小来自水流推进模块带来的侧向力;体上提升了吊舱推进器对不同水动力环境的适应能力,增加吊舱推进系统稳定性,更加便捷安全,在整体上减少航行成本,有效改善吊舱工作中的水动力性能。
Pod thruster boundary layer absorption type vortex eliminating device
一种吊舱推进器边界层吸收式消涡装置
2020-09-18
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Vortex absorption structure for eliminating wind vibration and vehicle
Europäisches Patentamt | 2020
|Vortex/boundary layer interactions
AIAA | 1989
|