长方体框架型人工鱼礁的流场效应

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中图分类号：S953.1 文献标志码：A 文章编号：1000-4939（2025）03-0665-12

Abstract：The cuboid frame artificial reefs can be used to change the flow field and providea favorable habitat for a variety of marine life.In tropical waters such as ofshore Hainan Island，artificial reefs can also provide an attachment base for coral restoration.In this paper，ADV was used to measure the flow velocity of the representative measuring points of the cuboid frame artificial ref model，and PIV was further used to measure the typical flow field characteristics around the reef model. Based on RANS equations and RNG k-ε turbulence model，the hydrodynamic field of a single cuboid frame artificial reef was numericaly calculated under different incoming flow velocities and angles of incident flow，which was verified by experimental results.On this basis，the flow field effects of multiple reefs under different layout modes were calculated and analyzed.The results show that within a certain range，the volume of upwelling and back eddy of asingle reef increases as the velocity of incoming stream increases，and the flow field efect is best when the angle of incident flow is 45∘ . The best field effect of two reefs is obtained at the spacing of2.5 times of thelength of the longitudinal reef and 1.5 times of the length of the transverse reef.When multiple refs are arranged along a straight line，the staggered arrangement of each row of reefs has a larger volume of upwelling and back eddy，and the flow field effect isbetter.

Key words：artificial reef;flow field effect;upwelling and back eddy;layout spacing;optimized layout

人工鱼礁是人工放置在天然海洋环境中的构造物，各种造型的礁体通过不同的布设方式组成礁群，用于修复水域生态环境，为各类海洋生物提供繁殖生长的生息场所。（剩余15588字）