Modelling surface oscillations in New Zealand lakes

Modelling surface oscillations in New Zealand lakes
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模拟新西兰湖泊的表面振荡

DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
M. R. Lane
M. R. Lane
中科院分区：
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文献类型：
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作者：
G. Carter;M. R. Lane

文献摘要

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摘要 使用有限元法结合特征分析对湖泊水流进行建模，以计算自然振荡模式。将模型结果与一些简单几何湖泊的解析解进行比较，发现模型结果取决于网格细度。该模型随后被应用于新西兰南岛的三个湖泊：奥豪湖、柯勒律治湖和蒂阿瑙湖。由此产生的振荡周期与测量数据相当一致。该模型可用于选择新的记录器位置、设置记录器间隔以及消除塞车的影响。
Abstract Lake seiching was modelled using the Finite Element Method combined with eigen‐analysis to calculate the natural modes of oscillation. The model results are compared with analytical solutions for some simple geometrical lakes and are found to be dependent on the grid fineness. The model was then applied to three lakes in the South Island of New Zealand: Lake Ohau, Lake Coleridge, and Lake Te Anau. The resulting periods of oscillation were in reasonable agreement with measured data. The model can be used for selecting new recorder sites, setting the recorder interval, and for removing the effect of seiche.