MODELLING THE FLOW AROUND AN ISLAND AND A HEADLAND: APPLICATION OF A TWO MIXING LENGTH MODEL WITH TELEMAC3D
MODELLING THE FLOW AROUND AN ISLAND AND A HEADLAND: APPLICATION OF A TWO MIXING LENGTH MODEL WITH TELEMAC3D
复制标题
对岛屿和地头周围的流动进行建模：使用 TELEMAC3D 应用两种混合长度模型
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
P. Stansby
中科院分区：
文献类型：
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作者：
Nicolas Chini;P. Stansby
岛屿和海岬周围环流的数值模拟是一项具有挑战性的任务，底部摩擦和涡流粘度控制着尾流和涡流的形成。在这种配置中的涡粘性项可以成为主要的和隐式求解器是可取的，以保持合理的计算时间。在TELEMAC3D（Hervouet，2007）中实现了一种基于将水平混合长度与Stansby（2003）之后的垂直混合长度耦合的方法。这种发展，然后测试对两个不同的数据集的实验室实验中，一个代表的流动周围的岛屿和另一个振荡的潮汐流在附近的岬角。与传统的涡粘性模型的比较。
Numerical modelling of the circulation around islands and headlands is a challenging task with bottom friction and eddy viscosity controlling the formation of wakes and eddies. The eddy viscosity terms in such configurations can become predominant and an implicit solver is desirable to maintain reasonable computational time. An approach based on coupling the horizontal mixing length to the vertical one following Stansby (2003) is implemented into TELEMAC3D (Hervouet, 2007). This development is then tested against two different datasets of laboratory experiments, the one representing the flow around an island and another one the oscillatory tidal flow in the vicinity of a headland. Comparisons with conventional eddy viscosity models are presented.