EXCHANGE CHARACTERISTICS OF AN ANTHROPOGENICALLY MODIFIED LAGOON: AN EULERIAN-LAGRANGIAN MODELING CASE STUDY WITH AN EMPHASIS ON THE NUMBER OF PARTICLES

IF 1 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Engineering and Landscape Management Pub Date : 2021-08-23 DOI:10.3846/jeelm.2021.15237

Banu Tansel Büyükçelebi, H. Karabay, Ata Bilgili

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引用次数: 1

Abstract

The transport pathways and exchange characteristics of the Kamil Abdüş Lagoon in Istanbul, Turkey, are simulated using a finite element model with a Lagrangian particle tracking module. The lagoon is in the process of being reconfigured. The simulations are performed using a draft configuration. The effect of winds and the number of particles on the e-folding time is simulated. Results show that the lagoon is strongly dominated by winds with a correlation coefficient of 0.897 between the wind and residual current magnitudes. The lagoon e-folds in 9.1 days under realistic winds and in 14.3 days when there is no wind with confidence levels of 5%. The Lagrangian study uses six simulations with particle numbers ranging between 65073 and 2730486. A methodology based on confidence levels is proposed. It is observed that approximately 784 000 particles are necessary to obtain 5% level of confidence. With a problematic history and new planning options, the lagoon has a potential to be used as an example setting, all-field study ground for anthropogenically engineered coastal ecosystems.

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人工改造泻湖的交换特性&以粒子数为重点的欧拉-拉格朗日模型为例

使用拉格朗日粒子跟踪模块的有限元模型模拟了土耳其伊斯坦布尔Kamil Abdüş泻湖的运输路径和交换特性。泻湖正在重新配置中。使用拔模配置进行模拟。模拟了风和粒子数量对电子折叠时间的影响。结果表明，泻湖强烈受风的支配，风和残余流大小之间的相关系数为0.897。在实际风下，泻湖将在9.1天内形成e型，在无风的14.3天内形成，置信水平为5%。拉格朗日研究使用了六个粒子数在65073到2730486之间的模拟。提出了一种基于置信水平的方法。据观察，大约784000个颗粒是获得5%置信水平所必需的。由于有着问题重重的历史和新的规划选择，泻湖有可能被用作一个榜样，成为人类工程学设计的沿海生态系统的所有实地研究基地。

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来源期刊

Journal of Environmental Engineering and Landscape Management 环境科学-环境科学

CiteScore

1.90

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Environmental Engineering and Landscape Management publishes original research about the environment with emphasis on sustainability.