Sites suitable for the deployment of tidal turbines generally show a combination of complex seabed morphologies and extreme current magnitudes. Such configurations favour the formation of vortices, which can be very powerful. Anticipating the vortex effect on the turbine performance and/or lifespan requires refined description of the turbulence. Thanks to increased calculation resources, large-eddy simulation (LES) can now be applied to natural flow. An LES approach developed within the TELEMAC-3D open-source software is presented here. After validating the model with in-situ measurements, the model is applied to characterize the flow statistics of the Alderney Race. This article is part of the theme issue ‘New insights on tidal dynamics and tidal energy harvesting in the Alderney Race’.

中文翻译：

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使用大涡模拟的潮汐能场的湍流特征：奥尔德尼岛竞赛的案例

适合部署潮汐涡轮机的场地通常表现出复杂的海床形态和极端电流强度的组合。这种配置有利于涡流的形成，涡流可能非常强大。预测涡流对涡轮机性能和/或寿命的影响需要对湍流进行精确描述。由于计算资源增加，大涡模拟 (LES) 现在可以应用于自然流动。此处介绍了在 TELEMAC-3D 开源软件中开发的 LES 方法。在使用原位测量验证模型后，该模型被应用于表征奥尔德尼赛跑的流量统计。本文是主题问题“奥尔德尼岛竞赛中潮汐动力学和潮汐能收集的新见解”的一部分。