The invention relates to a power-based microbubble resistance reduction test method, which comprises the following steps: S1, adjusting the draught and floating state of a model machine: pre-recording environmental influence factors of wind speed before a test, firstly putting the model machine into a test pool during the test, and achieving the preset draught and floating state in a manner of manually placing ballast iron; s2, the rotating speed of a propeller is set according to preset working conditions; s3, the prototype sails in a non-jet state, and the main engine power and the propeller shaft power of the prototype are recorded; s4, the air injection amount is set according to the preset working condition, the prototype sails in the air injection state, and the prototype main engine power and the propeller shaft power are recorded; and S5, calculating the drag reduction rate and the energy-saving rate after the microbubble drag reduction system is used according to the power change before and after the microbubble drag reduction system is used. According to the method, the influence of air injection on the viscous pressure resistance of a model machine, the propeller efficiency and the like cannot be considered in a traditional micro-bubble resistance reduction measurement method, and the defect of the energy-saving effect of a micro-bubble resistance reduction calculation technology can be overcome.
本发明涉及一种基于功率的微气泡减阻试验方法,包括以下步骤:S1、调整样机吃水及浮态:试验前预先记录好风速的环境影响因素,试验时首先将样机下放至试验水池中,通过人工放置压载铁的方式达到预设的吃水和浮态;S2、根据预设的工况设定螺旋桨转速;S3、样机在不喷气状态下航行,记录样机主机功率及螺旋桨轴功率;S4、根据预设的工况设定喷气量,样机在喷气状态下航行并记录样机主机功率及螺旋桨轴功率;S5、通过前后的功率变化计算使用微气泡减阻系统后的减阻率和节能率。本发明弥补了传统微气泡减阻测量方法无法考虑喷气给样机粘压阻力、螺旋桨效率等带来的影响,能够克服计算微气泡减阻技术的节能效果的缺陷。
Microbubble drag reduction test method based on power
基于功率的微气泡减阻试验方法
2023-05-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Test prototype suitable for microbubble drag reduction technology
Europäisches Patentamt | 2023
|Slippery Issues in Microbubble Drag Reduction
AIAA | 2005
|Slippery Issues in Microbubble Drag Reduction
British Library Conference Proceedings | 2005
|Air injection device suitable for microbubble drag reduction
Europäisches Patentamt | 2023
|Underwater vehicle microbubble drag reduction device and control system
Europäisches Patentamt | 2024
|