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On local and convective accelerations in steep wave events

机译:关于陡波事件中的局部和对流加速度

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摘要

The local and convective accelerations of steep irregular wave events have been investigated. These properties are measured by a two-camera PIV technique. Furthermore, the experiments are compared with two different theories including a fully nonlinear and a simplified analytical model. An important result is that the convective term is of the same order of magnitude and of opposite sign as the local acceleration. The convective acceleration term can therefore not be neglected in acceleration and force estimates.
机译:已经研究了陡峭的不规则波事件的局部和对流加速度。这些性质是通过两机PIV技术测量的。此外,将实验与包括完全非线性和简化分析模型在内的两种不同理论进行了比较。一个重要的结果是,对流项与局部加速度具有相同的数量级和相反的符号。因此,对流加速度项不能在加速度和力估计中忽略。

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