Experimental characterization of the scour of innovative artificial reef prototypes using hydraulic flume and photogrammetry

Cruz, Fábio Souza da; Pereira, Ester Liberato; Lima, M. Isabel P. de; Johnson, J. Raymond; Duarte, Duarte; Valente, Isabel; Miranda, Tiago F. S.; Maslov, Dmytro; Pinheiro, Marisa

doi:10.1109/oceanse.2019.8867581

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…The above studies show that submergence and inclination both play important roles in the local scour of a cylinder. However, the knowledge of their combined influence is limited and further research on the corresponding flow structures and scour patterns is required for applications in the mangrove pneumatophore [23], artificial reefs [24,25], Fish and aquatic habitat [26], and the riparian plants [21], where a submerged inclined cylinder can be a valid simplified model.…”

Section: Introductionmentioning

confidence: 99%

Effect of Inclination Angles on the Local Scour around a Submerged Cylinder

Wang

Yang

et al. 2020

Water

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In ocean engineering and coastal environmental studies, local scour around a submerged structure is a typical issue, which is affected by the inclination of the structure. To investigate the effect of inclination directions and angles on flow structure and the bed morphology, a three-dimensional numerical model of a submerged inclined cylinder was established. In this model, the hydrodynamics are solved from the RANS (Reynolds-averaged Navier–Stokes) equations closed with the RNG k-ε turbulence model, while the bed morphology evolution is captured by the sediment transport model. In the case of vertical-cylinder scour, the simulation results agree well with existing laboratory experiments. In the cases of inclined-cylinder scour, the results show that the inclination direction not only changes the intensity and the location of the downflow but also modulates the pattern of the horseshoe vortex in front of the cylinder, thus influencing the local scour depth and the morphology of the bed. Compared with the case of vertical cylinder, the scour around an upstream-inclined cylinder is deeper, mainly due to the enhancement of downflow in front of the cylinder. The scour around a downstream-inclined cylinder is shallower and broader due to the weakened downflow and accelerated incoming flow. The maximum scour depth decreases with the inclination angle in the downstream-inclination case. In the upstream-inclination case, the maximum scour depth does not vary monotonously with the inclination angle, which results from a competitive effect of the horseshoe vortex and downflow in the front of the cylinder.

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Section: Introductionmentioning

confidence: 99%

Effect of Inclination Angles on the Local Scour around a Submerged Cylinder

Wang

Yang

et al. 2020

Water

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Knitted textile KTPs for instrumented underwater building systems

Monteiro,

Pereira,

Almeida

et al. 2023

OCEANS 2023 - Limerick

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Functional Conception of Biomimetic Artificial Reefs Using Parametric Design and Modular Construction

Maslov,

Cruz,

Pinheiro

et al. 2024

JMSE

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Artificial reefs featuring different shapes and functions have been deployed around the world, causing impacts on marine ecosystems. However, the approaches typically used to deliver topological complexity, flexibility and expanding requirements to prospective structures during the initial design stages are not well established. The aim of this study was to highlight the advantages and provide evidence on how modularity and parametric design can holistically leverage the performance of multifunctional artificial reefs (MFARs). In particular, the goal was to develop a parametric design for MFAR and establish a direct relationship between specific design parameters and the MFAR target functions or design requirements. The idea of implementing the parametric design for generating the initial biomimetic geometry of the individual modular unit was explored. Furthermore, possible ways of manipulating the geometric parameters of the individual module and the whole assembly were proposed. The findings suggest that, by adopting the developed procedure and the examples studied, several functions may be reached within a single assembly: the promotion of marine biodiversity restoration, the support of scientific platforms with various sensors, as well as the development of recreational diving and of touristic attraction areas. Acquired knowledge suggests that the concept of a nature-like design approach was developed for artificial reefs with varying scales, complexity and functions, which widens the range of possibilities of how smart design of human-made underwater structures may contribute to benefiting the near shore ecosystems.

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Experimental characterization of the scour of innovative artificial reef prototypes using hydraulic flume and photogrammetry

Cited by 3 publications

References 6 publications

Effect of Inclination Angles on the Local Scour around a Submerged Cylinder

Effect of Inclination Angles on the Local Scour around a Submerged Cylinder

Knitted textile KTPs for instrumented underwater building systems

Functional Conception of Biomimetic Artificial Reefs Using Parametric Design and Modular Construction

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