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A Bias Correction Method of Ship Wind Measurement Based on Airflow Field Simulation
Author(s): 
Pages: 28-34
Year: Issue:  2
Journal: Ocean Technology

Keyword:  舰船空气流场CFD风测量偏差校正;
Abstract: 船舶海面风观测易受船体和上层建筑造成的畸变气流影响,使测风数据存在偏差.针对船舶相对风测量偏差校正问题,采用CFD仿真方法研究船体周围钝体绕流气流场,量化桅杆左、右横桁实测相对风速、风向与舰桥上部参考测风点相对风速、风向偏差,利用最小二乘支持向量机分别对左、右舷测风偏差进行回归并建立校正模型.通过海上实船实验采集桅杆左、右横桁与舰桥上部测风点处的相对风测量数据,验证模型校正测风偏差的实际效果,结果表明CFD仿真建模方法能够有效降低实验船型56%的相对风速测量偏差.
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