摘要
首先,建立三维数值波浪水槽,确定可变翼装置达到最优转动效果时导叶的最大张开角度;然后,在波浪水槽中进行试验考察波浪作用下可变翼装置的转动特点;最后,比较不同波浪条件下装置的转速,并总结影响转速的主要因素。通过数值模拟及试验研究发现:1)导叶最大张开角度达到39?时,装置达到最优的转动效果;2)波浪作用过程中可变翼装置的转速不稳定、波谷时刻叶轮位置处水质点的速度小于0.232 m/s时装置会出现间歇性停转;3)波高过小、周期过大、模型入水过深都会降低模型的旋转速度。
Firstly, a 3D numerical wave flume was built, and the optimal maximum angle of guide vane was determined. Then, experiments for the hydrodynamic characteristics of the guide vane-changing device in the wave flume were designed and conducted. At last, the rotation speeds of the device under different wave conditions were compared, and the main factor affecting the speed we summarized. Analysis results showed that： 1 ） if the maximum angle of guide vane is 39°, the device has an optimal state; 2） it has an unstable rotation speed during the period of wave action, and intermittent pause is occurred when the wave trough velocity of water particles is below 0.232 m/s on the location of the device; 3） the rotation speed will decrease in the condition of small wave height, long wave period or big depth of the model in water.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2017年第3期860-866,共7页
Acta Energiae Solaris Sinica
基金
山东省重点研发计划(2015GSF115035)
关键词
波浪能发电
可变翼
水动力特性
数值水槽
试验
wave energy convertor
guide vane-changing
hydrodynamic characteristics
numerical flume
experiment
