Challenges for steady and unsteady model motion in a large water towing tank and procedures to overcome them are the focus of the presented work. Some challenges are attributed to experiments conducted in water, whereas others are uniquely ascribed to a towing tank facility. Data convergence and outlier detection are studied based on the phase averaged pressure in order to ensure proper data quality. Pressure measurements are performed with non-surface mounted sensors. Therefore, inertia effects are detrimental when the attached tubing is not fully de-aired. A procedure for de-airing the pressure sensor cavity and its tubing is described. An iterative approach is developed that compensates for nonlinear distortion of the model’s velocity profile. Further, vibration effects are examined by distinguishing mechanical and flow-induced frequencies that scale with the instantaneous model velocity. Sloshing waves are excited, which are a function of the water basin size. The first sloshing mode defines the required sensor offset time in between test cases when prevailing sloshing waves have not fully decayed. This appropriate selection of sensor offset time reduces data scatter and enables a reasonable waiting time in between test cases. A skim plate installed just below the water surface offers a potential solution to alleviate surface wave effects over the model.

大型拖水罐中模型运动的不稳定和挑战以及克服这些挑战的方法是本研究的重点。一些挑战归因于在水中进行的实验，而另一些挑战则归因于牵引箱设施。为了确保适当的数据质量，基于相位平均压力对数据收敛和离群值检测进行了研究。压力测量是通过非表面安装的传感器执行的。因此，当所连接的管道未完全排气时，惯性效应是有害的。描述了对压力传感器腔体及其管路进行排气的过程。开发了一种迭代方法来补偿模型速度曲线的非线性失真。进一步，通过区分与瞬时模型速度成比例的机械和流动感应频率来检查振动影响。激荡的波浪被激发，这是水盆大小的函数。当主要的晃动波尚未完全衰减时，第一种晃动模式定义了测试案例之间所需的传感器偏移时间。这个适当的传感器偏移时间选择降低了数据分散并能够在合理的等待时间在测试用例之间。安装在水面正下方的脱脂板为缓解模型上的表面波效应提供了一种潜在的解决方案。当主要的晃动波尚未完全衰减时，第一种晃动模式定义了测试案例之间所需的传感器偏移时间。这个适当的传感器偏移时间选择降低了数据分散并能够在合理的等待时间在测试用例之间。安装在水面正下方的脱脂板为缓解模型上的表面波效应提供了一种潜在的解决方案。当主要的晃动波尚未完全衰减时，第一种晃动模式定义了测试案例之间所需的传感器偏移时间。这个适当的传感器偏移时间选择降低了数据分散并能够在合理的等待时间在测试用例之间。安装在水面正下方的脱脂板为缓解模型上的表面波效应提供了一种潜在的解决方案。