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舰载风速仪测量误差与安装位置的关系研究

DOI: 10.3969/j.issn.1006-7043.201306077

Keywords: 舰载风速仪, CFD, 气流场, 测量误差, 船体的运动姿态

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Abstract:

船体的运动姿态以及观测点位置的差别等均会对舰载风速仪的测量精度产生一定程度的影响,因此研究舰载风速仪测量误差与其安装位置之间的关系具有重要意义。以大型CFD计算软件FLUENT13.0为平台,合理简化物理模型,建立恰当的数学模型,划分高质量网格,赋予模型合适的边界条件对不同工况下风速仪周围的气流场进行了计算分析。研究表明风速仪在现有安装位置测量误差较大,低风速高船速时风速仪的测量误差明显较高。还给出了风向角及风速值测量误差随安装位置的变化规律,以及船体本身对风速仪测量精度的影响程度,为更加合理地确定风速仪安装位置提高风速仪测量精度提供了重要依据。

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