Bionic gradient flexible fish skin acts as a passive dynamic micro-roughness to drag reduction

Chen, Dengke; Cui, Xianxian; Liu, Xiaolin; Chen, Huawei

doi:10.1016/j.surfcoat.2023.129337

Cited by 15 publications

(8 citation statements)

References 27 publications

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“…[ 1‐4 ] Living in water, fishes have evolved skins with different structures and mucus to accommodate the complicated aquatic environments. [ 5‐7 ] Learning from the geometries of fish scales, many studies concentrated on the influence of fish‐scale‐inspired surface structure on the performance of drag reduction. For example, the tiny denticles on sharkskin change the velocity distribution in the turbulent boundary layer, contributing to the drag reduction and thus a high swimming velocity.…”

Section: Background and Originality Contentmentioning

confidence: 99%

“…For example, the tiny denticles on sharkskin change the velocity distribution in the turbulent boundary layer, contributing to the drag reduction and thus a high swimming velocity. [ 8‐9 ] The flexibility of the dolphin skin can absorb turbulent pulsations to postpone the laminar boundary layer to turbulent, [ 5,10‐11 ] achieving the drag reduction. Excellent drag‐reduction performances have also been demonstrated on other fishes, such as Carassius auratus and Dicentrarchus labrax .…”

Section: Background and Originality Contentmentioning

confidence: 99%

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Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†

Zhang,

Li,

Wang

et al. 2024

Chin. J. Chem.

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Comprehensive SummaryIn nature, fishes have evolved functional skins with effective hydrodynamic performance and anti‐fouling, facilitating predation and escaping from predators. Although a large number of fish scale‐inspired structured surfaces have been explored, the incorporation of mucus on the structured surfaces has been largely ignored. Inspired by the skin of Osteichthyes fishes, a Janus hydrogel coating (JHC) is successfully prepared by a two‐step UV light irradiation at room temperature. The bottom side of JHC (STH) achieves a shear adhesive strength of 103.3 ± 17.5 kPa and can strongly adhere to a large variety of surfaces, including metals, ceramic and polymers. The top surface of JHC (SLH) replicates the structure of cycloid scales, while the nature of hydrogel mimics the mucus on fish skin. SLH possesses prominent mechanical, anti‐swelling, anti‐fouling and drag reduction properties. The design strategy for JHC has potential applications in numerous fields, like, pipeline transportation, bioengineering, and shipping industry.This article is protected by copyright. All rights reserved.

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Section: Background and Originality Contentmentioning

confidence: 99%

Section: Background and Originality Contentmentioning

confidence: 99%

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†

Zhang,

Li,

Wang

et al. 2024

Chin. J. Chem.

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“…For example, Chen et al established bionic gradient flexible fish skin (BGFFS) by exploring the unique structure of the skin surface of the tuna and biomimetically synthesized the epidermal, scaly, and dermal layers of the tuna using different materials. [115] Figure 9d shows [111] Copyright 2020, Elsevier. b) Biomimetic shark skin prepared at different depths with different light times, applied to reduce drag as well as antifouling.…”

Section: Fish Skin-biomimetic Interfacesmentioning

confidence: 99%

mentioning

confidence: 99%

Fabrication and Functional Regulation of Biomimetic Interfaces and Their Antifouling and Antibacterial Applications: A Review

Xu,

Luan,

et al. 2023

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Biomimetic synthesis provides potential guidance for the synthesis of bio‐nanomaterials by mimicking the structure, properties and functions of natural materials. Behavioral studies of biological surfaces with specific micro/nano structures are performed to explore the interactions of various molecules or organisms with biological surfaces. These explorations provide valuable inspiration for the development of biomimetic surfaces with similar effects. This work reviews some conventional preparation methods and functional modulation strategies for biomimetic interfaces. It aims to elucidate the important role of biomimetic interfaces with antifouling and low‐pollution properties that can replace non‐environmentally friendly coatings. Thus, biomimetic antifouling interfaces can be better applied in the field of marine antifouling and antimicrobial. In this review, the commonly used fabrication methods for biomimetic interfaces as well as some practical strategies for functional modulation is present in detail. These methods and strategies modify the physical structure and chemical properties of the biomimetic interfaces, thus improving the wettability, adsorption, drag reduction, etc. that they exhibit. In addition, practical applications are presented of various biomimetic interfaces for antifouling and look ahead to potential biomedical applications. By continuously discovering functional surfaces with biomimetic properties and studying their microstructure and macroscopic properties, more biomimetic interfaces will be developed.

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“…They are functional strategies formed in the long-term evolution of high-speed swimming organisms, such as fish. Many fish and sea animals exhibit excellent drag reduction capacity [1][2][3][4]. The scale of the fish Ctenopharyngodon idellus has many micro crescent units distributed on its surface, which can generate a "water-trapping" effect and form fluid lubrication to abate skin friction [5].…”

Section: Introductionmentioning

confidence: 99%

Drag reduction capacity of multi‐scale and multi‐level riblet in turbulent flow

Chen,

Li,

Zhao

et al. 2024

Biosurface and Biotribology

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For high‐speed moving objects, drag reduction has been a prolonged major challenge. To address this problem, passive and negative strategies have been proposed in the preceding decades. The integration of creatures and nature has been continuously perfected during biological evolution. Unique structure characteristics, material properties, and special functions of marine organisms can provide inexhaustible inspirations to solve this intractable problem of drag reduction. Therefore, a simple and low‐cost laser ablation method was proposed. A multi‐scale and multi‐level riblet (MSLR) surface inspired by the denticles of the sharkskin was fabricated by controlling the density of the laser path and ablation times. The morphology and topographic features were characterised using an electron microscope and a scanning white‐light interfering profilometer. Then, the drag reduction capacity of the bionic riblet surface was measured in a circulating water tunnel. Finally, the mechanism of drag reduction was analysed by the computational fluid dynamics (CFD) method. The results show that the MSLR surface has a stable drag reduction capacity with an increase in Reynold (Re) number which was contributed by high‐low velocity stripes formed on the MSLR surface. This study can provide a reference for fabricating spatial riblets with efficient drag reduction at different values of Re and improving marine antifouling.

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Bionic gradient flexible fish skin acts as a passive dynamic micro-roughness to drag reduction

Cited by 15 publications

References 27 publications

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†

Fabrication and Functional Regulation of Biomimetic Interfaces and Their Antifouling and Antibacterial Applications: A Review

Drag reduction capacity of multi‐scale and multi‐level riblet in turbulent flow

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Bionic gradient flexible fish skin acts as a passive dynamic micro-roughness to drag reduction

Cited by 15 publications

References 27 publications

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction†

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction†

Fabrication and Functional Regulation of Biomimetic Interfaces and Their Antifouling and Antibacterial Applications: A Review

Drag reduction capacity of multi‐scale and multi‐level riblet in turbulent flow

Contact Info

Product

Resources

About

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†

Fish Skin‐Inspired Janus Hydrogel Coating for Drag Reduction^†