线圈释放式温、盐、深探头运动特性的数值计算方法研究  

Computation Method of the Kinetic Property of Salinity,Temperature and Depth Probe with Releasing Winding

作　　者：黄银水[1] 陶建华[1] 

机构地区：[1]天津大学力学系,天津300072

出　　处：《海洋技术》2003年第1期45-48,共4页Ocean Technology

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.

关 键 词：线圈释放 探头 阻力系数 速度损失 

分 类 号：P716[天文地球—海洋科学]