摘要
线圈释放式温、盐、深探头从空中定点投放 ,入水后测量海洋不同海水层面上的温度和盐度 ,因此必须知道探头各个时刻的入水距离 ,以与获得的温、盐数据对应。本文对其运动特性进行了数值计算 ,并在计算中考虑了探头质量和排水体积的变化。利用已有的形状完全相同但不释放线圈的探头实验资料 ,拟合出了探头在海水中的阻力系数与雷诺数的关系式。并且分析了探头入水瞬间速度损失的影响。
The STD probe is used to measure the temperature and salinity of the seawater. It is necessary to know the kinetic property of the probe at any time. In this paper, the kinetic property of the probe is studied. The resistance coefficient of the probe is obtained by analyzing the experiment data. The velocity loss at the free surface due to striking is taken into account, as well as the changing of volume and weight of the probe due to releasing winding.
出处
《海洋技术》
北大核心
2003年第1期45-48,共4页
Ocean Technology
关键词
线圈释放
探头
阻力系数
速度损失
releasing winding
probe
resistance coefficient
velocity Loss
