人工和人口的分水的水力动力学:在单向流动下,实验室研究了缩小的城堡
Iacopo Vona1, Chien-Yung Tseng2, Rafael O Tinoco3
1Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA; National Research Council of Italy, Institute of Marine Science, Rome, Italy.
Journal of environmental management
|June 28, 2024
概括
有的城堡 (OC) 改变了水流,增加了流和能量消耗. 这项研究量化了这些水力动力学变化,为基于自然的沿海保护结构的设计提供了信息.
科学领域:
- 海洋生态海洋生态学
- 沿海工程的工程.
- 流体动力学 流体动力学
背景情况:
- 由于人类活动和疾病,切萨皮克湾的种群大幅减少.
- 礁提供重要的生态系统服务,包括沿海保护和改善水质.
- 城堡 (OCs) 越来越多地被用作恢复种群和息地的可持续方法.
研究的目的:
- 量化早期的城堡 (OCs) 与被覆盖的城堡周围的水力动力学差异.
- 评估对OCs周围的流速加速,流和能量消耗的影响.
- 作为以自然为基础的沿海保护解决方案,以为基础的分水的设计为基础.
主要方法:
- 实验室实验是在生态液压和生态形态动力学实验室 (EEL) 的循环管道中进行的.
- 裸体和覆盖的OCs的尺寸模型 (1:7) 用于2D流量表征.
- 粒子图像速度测量 (PIV) 用于测量流动动力学和动动能.
主要成果:
- 与裸露的OC相比,被覆盖的OC在其表面上表现出显著的流速加速.
- 的存在增加了结构周围动动能的产生和分布.
- 雷诺兹应力受到的显著影响,影响了潜水和近浮现条件下的流动模式.
结论:
- 显著改变了城堡的水力动力学,增强了它们对海岸保护的潜力.
- 需要对3D流结构进行进一步的研究,以制定关于设计居住的分水的全面指导方针.
- 拥有已建立种群的OCs代表了一个有希望的基于自然的解决方案,用于在低能耗环境中的沿海弹性.
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