4.7 Article

Current and turbulence characteristics of perforated box-type artificial reefs in a constant water depth

期刊

OCEAN ENGINEERING
卷 244, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2021.110359

关键词

Turbulence; Artificial reef; PIV; Vortex; Aspect ratio

资金

  1. National Natural Science Foundation of China [41776098, 41976159]
  2. China Scholarship Council [202006260239]

向作者/读者索取更多资源

This study revealed the internal flow structure induced by artificial reefs with an aspect ratio of 2.09, filling a gap in existing research through experiments and numerical modeling. The internal turbulence features were dominated by horizontal vortex structures and showed certain symmetry due to the symmetrical reef configuration.
The internal turbulence formed within artificial reefs (ARs) is extremely important. Laboratory experiments were conducted using Particle Image Velocimetry (PIV) to observe the influence of reef configuration on the current and turbulence features of perforated box-type ARs via arranging from one to three blocks, corresponding to the aspect ratio of 1.05, 2.09 and 3.14 respectively. A numerical model with same specifications of the PIV experiment was built and the calculated results were verified using experimental data. Several vortices with different scales and strong turbulence intensity are formed inside and behind the reef. The internal turbulence has been fully developed under the reef configuration with aspect ratio of 2.09. The internal turbulent flow structure was dominated by the horizontal vortex structure, which displayed certain symmetry in the transverse direction because of symmetrical reef structure. The vorticity pattern inside the reefs was dipole-type, regardless of aspect ratio, consisting of two pairs of high-vorticity but opposite rotation direction clouds formed behind the openings of reef stoss face, and symmetrical distribution in both vertical and horizontal direction. This study aims to reveal the reef-induced internal flow structure and fills the gap of existing research.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据