Numerical simulation and PIV experimental study of the effect of flow fields around tube artificial reefs

Li, Jiao; Zheng, Youqu; Gong, Pi-Hai; Guan, Changtao

doi:10.1016/j.oceaneng.2017.02.016

Cited by 33 publications

(7 citation statements)

References 13 publications

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“…The relationship between the hydrodynamic characteristics and the ecological environment construction of artificial reefs is still unclear. With the severe erosion of the global coastline and the shortage of renewable energy, some researchers began to combine artificial reefs with the underwater breakwaters, the wave-dissipating structures, and the renewable energy devices (Srisuwan and Rattanamanee, 2015;De Almeida, 2017;Jiao et al, 2017;Kim et al, 2020;Ghiasian et al, 2021;Marin-Diaz et al, 2021). These multi-functional artificial reefs can not only fulfill the functions of ocean structures, but also enrich the diversity of marine organism.…”

Section: Significance Of Artificial Reef Constructionmentioning

confidence: 99%

“…The upwelling region of a single reef is significantly affected by the flow velocity, the cut-opening properties of the reef body, the structural type, and the angle of the guide plate (Fulton and Bellwood, 2005;Preker and Lawn, 2012;Jiang et al, 2016;Wang et al, 2018;Zhao et al, 2019). On the other hand, the stacking height, the arrangement patterns, and the separation distances among multiple reef are factors affecting different heights and areas of upwelling (Jiao et al, 2017;Shu et al, 2021a;Wang et al, 2021).…”

Section: The Effect Of Flow Fieldmentioning

confidence: 99%

“…Therefore, it is quite crucial to quantify the size of the wake region for studying the implications of artificial reefs. According to the length of the wake region, many researchers have quantified the size, area, and volume of the wake region Jung et al, 2016;Jiao et al, 2017;Huang et al, 2017). The three-dimensional wake volume is more representative compared to other properties of the wake region, such as areas and lengths of the wake region (Kim et al, 2014a).…”

Section: The Effect Of Flow Fieldmentioning

confidence: 99%

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Review of Structure Types and New Development Prospects of Artificial Reefs in China

et al. 2022

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Artificial reefs are beneficial to restore fishery resources and increase fishery production. Meanwhile, they play a significant role in improving ocean ecology and accelerating the evolution of fishery industries. Since they are generally affected by currents, waves, and other hydrological factors, the flow field around artificial reefs and their stabilities have become a research hotspot in recent years. Research on artificial reefs is a systematic process consisting of four aspects: Firstly, the significance, the definition, the mechanism, and the present research progress were introduced for artificial reefs in detail. Secondly, the development trend of the sit-bottom artificial reef and that of the floating artificial reef were summarized, respectively. Thirdly, it was found that the combination of traditional artificial reefs and emerging ocean engineering has a great development potential in practical engineering. Finally, the existing problems related to the hydrodynamic characteristics of the artificial reefs in China were summarized, and the prospects of artificial reefs were proposed. The purpose of this study is to provide a scientific reference for the ecological and sustainable development of the large-scale construction of artificial reefs in the ocean.

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Section: Significance Of Artificial Reef Constructionmentioning

confidence: 99%

Section: The Effect Of Flow Fieldmentioning

confidence: 99%

Section: The Effect Of Flow Fieldmentioning

confidence: 99%

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Review of Structure Types and New Development Prospects of Artificial Reefs in China

et al. 2022

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“…To design artificial reef structures that can provide better habitats for fish, extensive research has been conducted on flow field effects (Zheng et al, 2015;Jiao et al, 2017;Ma et al, 2022). The materials (Brown, 2005;Sempere-Valverde et al, 2018), shapes (Vivier et al, 2021) and distances (Froehlich et al, 2021) of artificial reefs have also been investigated aiming to improve their ecological effects.…”

Section: Introductionmentioning

confidence: 99%

Influence of reef structure and its flow field effect on the spatial behavior of Sebastes schlegelii adults

Gong

Wang

et al. 2023

Front. Mar. Sci.

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Sebases schlegelii is an important economic reef fish in northern China. Its distribution in the reef area is affected by the reef structure and flow field. To evaluate the effects of differently shaped artificial reefs with distinct flow field properties on the distribution of adult S. schlegelii, four types of artificial reefs (cubic (CAR), pyramidal (PAR), star-shaped (SAR) and tubular (TAR) artificial reef) and the related flow regimes were experimentally examined. The mean gathering rate (MGR) and wavelet analysis were adopted to analyze the distribution patterns of S. schlegelii adults around reef bodies in three representative environmental conditions (static water (FE1), 40 Hz water flow environment (FE2), and 50 Hz water flow environment (FE3)). The significant gathering behaviors around the artificial reefs were depicted through the MGR of adult fish during physical observations. For FE1, the MGR of adult fish showed a decrease in the order PAR > CAR > SAR > TAR. With increasing incoming velocities, the MGR changed such that the quantity of adult fish in the CAR gradually increased more than that in the PAR, but no significant differences were observed between them (P>0.05). Wavelet analysis showed that the fluctuations in the gathering behaviors of adults decreased with increasing flow velocities. Based on the two-factor analysis of variance, the reef structural characteristics had a more significant impact than the flow velocities on the gathering behavior of adult fish. In summary, the PAR and CAR are recommended to restore the habitats of S. schlegelii in marine ranches given their dominant aggregation effects on S. schlegelii.

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“…The velocity fields and flow patterns near a vertical and an inclined thin plate obstacle, induced by the propagation of a solitary wave, were also investigated by Zaghian et al [12] using the PIV technique. Jiao et al [13] investigated the flow field around three reefs using the PIV technique, which was used to validate the numerical simulation. Their simulation results showed good agreement with the results of the PIV experiments.…”

Section: Introductionmentioning

confidence: 99%

Visualization Investigation of Energy Dissipation Induced by Eddy Currents for a Solitary-Like Wave Passing over Submerged Breakwater Sets

Shih

Weng

2020

JMSE

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Wave attenuation for the purpose of coastal protection has been an important topic in coastal engineering. Wave attenuation in relation to the vortices induced by a solitary-like wave propagating over submerged breakwaters (BWs) is discussed in this paper. A series of hydraulic model experiments was conducted to investigate the occurrence of eddies, the types and combinations of submerged BWs, and related phenomena of the range expansion of vortices. The microscopic changes in the flow field, the variation of eddies, and the distributions of streamlines were analyzed using the particle image velocimetry (PIV) technique. The measured transmission and reflection coefficients, along with the concept of energy conservation, were also examined to support the results. The results indicate that the attenuated wave energy is related to the induced vortices, and show that the total relative vortex energy for rectangular submerged BWs is larger than that for undulating submerged BWs in both the single and composite sets. The magnitude of the maximum vorticity of the undulating BW sets is larger and more concentrated than that of the rectangular BW sets; however, the total vortex energy is slightly smaller owing to the narrower vortex area range.

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Numerical simulation and PIV experimental study of the effect of flow fields around tube artificial reefs

Cited by 33 publications

References 13 publications

Review of Structure Types and New Development Prospects of Artificial Reefs in China

Review of Structure Types and New Development Prospects of Artificial Reefs in China

Influence of reef structure and its flow field effect on the spatial behavior of Sebastes schlegelii adults

Visualization Investigation of Energy Dissipation Induced by Eddy Currents for a Solitary-Like Wave Passing over Submerged Breakwater Sets

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