Surfaces of coastal biogenic structures

exploiting advanced digital design and fabrication strategies for the manufacturing of oyster reef and mussel bed surrogates

verfasst von: Jan Hitzegrad, Leon Brohmann, Friedrich Herding, Kai Pfennings, Sven Jonischkies, Elisa Scharnbeck, Jeldrik Mainka, Inka Mai, Christian Windt, Harald Kloft, Achim Wehrmann, Dirk Lowke, Nils Goseberg
Abstract: Coastal biogenic structures, formed by ecosystem engineering species, often feature rough surfaces characterized by intricate topographies and highly three-dimensional reliefs. Their surfaces are shaped by waves and tidal currents and reciprocally influence the ambient hydrodynamics, reflecting an equilibrium. Despite their significance, the impact of these surfaces on the ambient hydrodynamics remains underexplored due to limited knowledge of accurately replicating their complex topographies in experimental setups. The recent advent of advanced digital manufacturing presents an efficient means to manufacture highly complex, three-dimensional surrogate models for experimental modeling. This work explores the accurate replication of rough coastal biogenic structures for experimental modeling on the examples of an oyster reef and a mussel bed, utilizing a flexible design methodology and, for the first time, particle bed 3D printing with Selective Cement Activation (SCA) as a fabrication and manufacturing method. A workflow is proposed, which includes an iterative surrogate model development based on in-situ topographical features, requirements of the experimental setup, and parameters of the particle bed 3D printer with SCA. The results demonstrate the effectiveness of the methodology in achieving highly accurate surrogate surfaces of complex coastal biogenic structures by validation against a set of topographical features relevant to hydraulic roughness. Particle bed 3D printing with SCA proved to be a suitable method to manufacture complex surrogate surfaces for experimental modeling, offering advantages such as independence of production time from surface complexity. However, challenges persist in achieving exact comparability between the manufactured surrogate surface and the real coastal biogenic structures, particularly for surfaces with very high complexity. Nonetheless, the manufactured generic surrogate surfaces enable detailed investigations into the influence of complex coastal biogenic structures on the ambient hydrodynamics, thereby enhancing the understanding of the processes governing wave energy dissipation attenuation, turbulence production, and vertical mixing – critical for efficient application as a nature-based solution on coastal protection or restoration efforts.
Organisationseinheit(en): Forschungszentrum Küste
Externe Organisation(en): Technische Universität Braunschweig
Technische Universität Berlin
Technische Universität München (TUM)
Senckenberg am Meer
Typ: Artikel
Journal: Frontiers in Marine Science
Band: 11
Anzahl der Seiten: 24
ISSN: 2296-7745
Publikationsdatum: 23.04.2024
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Ozeanographie, Globaler Wandel, Aquatische Wissenschaften, Gewässerkunde und -technologie, Umweltwissenschaften (sonstige), Meerestechnik
Elektronische Version(en): https://doi.org/10.3389/fmars.2024.1395025 (Zugang: Offen)

BibTeX

@article{32fe09f3d36c47febed5013ac2dc3e10,
title = "Surfaces of coastal biogenic structures: exploiting advanced digital design and fabrication strategies for the manufacturing of oyster reef and mussel bed surrogates",
abstract = "Coastal biogenic structures, formed by ecosystem engineering species, often feature rough surfaces characterized by intricate topographies and highly three-dimensional reliefs. Their surfaces are shaped by waves and tidal currents and reciprocally influence the ambient hydrodynamics, reflecting an equilibrium. Despite their significance, the impact of these surfaces on the ambient hydrodynamics remains underexplored due to limited knowledge of accurately replicating their complex topographies in experimental setups. The recent advent of advanced digital manufacturing presents an efficient means to manufacture highly complex, three-dimensional surrogate models for experimental modeling. This work explores the accurate replication of rough coastal biogenic structures for experimental modeling on the examples of an oyster reef and a mussel bed, utilizing a flexible design methodology and, for the first time, particle bed 3D printing with Selective Cement Activation (SCA) as a fabrication and manufacturing method. A workflow is proposed, which includes an iterative surrogate model development based on in-situ topographical features, requirements of the experimental setup, and parameters of the particle bed 3D printer with SCA. The results demonstrate the effectiveness of the methodology in achieving highly accurate surrogate surfaces of complex coastal biogenic structures by validation against a set of topographical features relevant to hydraulic roughness. Particle bed 3D printing with SCA proved to be a suitable method to manufacture complex surrogate surfaces for experimental modeling, offering advantages such as independence of production time from surface complexity. However, challenges persist in achieving exact comparability between the manufactured surrogate surface and the real coastal biogenic structures, particularly for surfaces with very high complexity. Nonetheless, the manufactured generic surrogate surfaces enable detailed investigations into the influence of complex coastal biogenic structures on the ambient hydrodynamics, thereby enhancing the understanding of the processes governing wave energy dissipation attenuation, turbulence production, and vertical mixing – critical for efficient application as a nature-based solution on coastal protection or restoration efforts.",
keywords = "additive manufacturing, bed roughness, coastal habitats, digital fabrication, experimental modeling, intertidal, particle bed 3D printing, Wadden Sea",
author = "Jan Hitzegrad and Leon Brohmann and Friedrich Herding and Kai Pfennings and Sven Jonischkies and Elisa Scharnbeck and Jeldrik Mainka and Inka Mai and Christian Windt and Harald Kloft and Achim Wehrmann and Dirk Lowke and Nils Goseberg",
note = "Publisher Copyright: Copyright {\textcopyright} 2024 Hitzegrad, Brohmann, Herding, Pfennings, Jonischkies, Scharnbeck, Mainka, Mai, Windt, Kloft, Wehrmann, Lowke and Goseberg.",
year = "2024",
month = apr,
day = "23",
doi = "10.3389/fmars.2024.1395025",
language = "English",
volume = "11",
journal = "Frontiers in Marine Science",
issn = "2296-7745",
publisher = "Frontiers Media S.A.",
}