摘要
本文基于AP98风压漂移模型原理及其在实际风场中的一般算法,利用东方红2号船漂移实测数据,采用最小二乘法,拟合得到9个风压系数:顺风向斜率、截距、回归标准差分别为0.0544、-0.067、0.1;右偏侧风向3个系数分别为0.003、-0.27、0.11;左偏侧风向3个系数分别为-0.003、0.27、0.11。另外,利用蒙特卡洛和拉格朗日方法,基于所得系数模拟回报了其漂移轨迹,所得回报搜寻区域与真实漂移轨迹符合良好,从而表明所得系数可靠可用。本文工作为国内首次根据AP98模型原理对大型船只的风压特性展开研究,有一定的实际意义,可为后续相关研究提供借鉴。
Based on the theory of AP98 leeway drift model and its practical algorithm in real winds, we analyzed the situ drift data of DongFangHong 2 ship （DFH2） with least square method, and determined its 9 leeway coefficients. The slope, y-intercept and standard error of downwind leeway were 0. 0544, -0. 067, and 0.1, respectively, while the coefficients of right crosswind leeway were 0. 003, -0.27 and 0.11, respectively, and the coefficients of left crosswind leeway were -0. 003, 0.27 and 0.11, respectively. Further, the trajectory of DFH2 was hind-casted, which was in good accordance with the observation. Internally, our work discussed the large-ship drift characteristics for the first time, which may serve as a reference for the related future works.
出处
《海洋湖沼通报》
CSCD
北大核心
2017年第6期46-51,共6页
Transactions of Oceanology and Limnology
基金
国家自然科学基金(41476002)
山东省科技发展计划(2013GHY11502)资助
