This article investigates the role that cross-sectional geometry plays on the magnitude and phase of wave-induced linear loads experienced by an underwater vehicle operating near the surface. A towing tank with wave making capabilities is used to measure the wave-induced forces and moments on various cross-sectional shapes experimentally. These are compared to predictions we made using a framework that can handle non-body-of-revolution geometries. In many cases, our experimental results were the opposite of the theoretical predictions. For instance, according to the predictions, for long wavelengths, the aspect ratio of a rectangle should not influence the linear heave force. However, we found that the heave force was proportional to the planform area of the rectangle. This study is a systematic investigation of the effects that changing the cross-sectional shape from a body-of-revolution to either a square, rectangular, or asymmetric shape, has on the wave-induced loads.

中文翻译：

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横截面几何形状对水下航行器波浪诱导载荷的影响

本文研究了横截面几何形状对在水面附近运行的水下航行器所承受的波浪引起的线性载荷的幅度和相位所起的作用。具有造浪能力的拖曳水箱用于通过实验测量各种横截面形状上的波浪引起的力和力矩。这些与我们使用可以处理非旋转体几何结构的框架进行的预测进行了比较。在许多情况下，我们的实验结果与理论预测相反。例如，根据预测，对于长波长，矩形的纵横比不应影响线性升沉力。然而，我们发现升沉力与矩形的平面面积成正比。