Slime-Groove Drag Reduction Characteristics and Mechanism of Marine Biomimetic Surface

Yan, Muhan; Gu, Yunqing; Ma, Longbiao; Tang, Jianxing; He, Chengdong; Mou, Jiegang

doi:10.1155/2022/4485365

Cited by 10 publications

(4 citation statements)

References 102 publications

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“…Studies show that the non-Newtonian mucus layer acts as a buffer between the solid fish surface and the surrounding water, effectively creating a slip condition between the fish and the water 153,154 . This is hypothesized to reduce shear at the boundary layer, thus decreasing skin-friction drag 155 (Fig. 4a) 156,157 .…”

Section: Aquatic Bio-inspired Flow Controlmentioning

confidence: 99%

Aerial and aquatic biological and bioinspired flow control strategies

et al. 2023

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Flow control is the attempt to favorably modify a flow field’s characteristics compared to how the flow would have developed naturally along the surface. Natural flyers and swimmers exploit flow control to maintain maneuverability and efficiency under different flight and environmental conditions. Here, we review flow control strategies in birds, insects, and aquatic animals, as well as the engineered systems inspired by them. We focus mainly on passive and local flow control devices which have utility for application in small uncrewed aerial and aquatic vehicles (sUAVs) with benefits such as simplicity and reduced power consumption. We also identify research gaps related to the physics of the biological flow control and opportunities for device development and implementation on engineered vehicles.

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Section: Aquatic Bio-inspired Flow Controlmentioning

confidence: 99%

Aerial and aquatic biological and bioinspired flow control strategies

et al. 2023

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“…As a result, the hydrogel or epidermal mucus secreted by fish can be considered a multifunctional material, with a very important role not only in protection and lubrication but also in respiration, ionic and osmotic regulation, feeding, etc. (Yan et al, 2022;Seo et al, 2021). Most research studies have shown that the antifouling activity of this natural epidermal hydrogel secreted by fish is due to the presence of a group of antimicrobial polypeptides, with amphipathic-helical structures, which by their nature can interact strongly with the phospholipid membranes of microorganisms (Liu et al, 2023).…”

Section: Bioactive Compounds Based On Natural Designs For Antifouling...mentioning

confidence: 99%

Chemical versus Natural Biocide Compounds - Minireview on Antifouling Coatings

Apetroaei,

Schröder,

Iancu

et al. 2024

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Marine biofouling is an old problem, known and studied for centuries, since the beginning of navigation. The accumulation of marine biofouling begins on the submerged portion of an ocean-going vessel or on any installation (equipments, pipes, platforms, etc.) within minutes of contact with seawater. Over time, this accumulation increases the ship's resistance, leading to increases in the physical resistance of the ship in the water, with negative consequences on fuel consumption and greenhouse gas emissions, high maintenance costs (due to corrosion), and a negative impact on the marine environment (due to the release of toic bioactive compounds into the environment and the transfer of invasive species). These environmental issues were identified and recognized by the IMO, which in the early 1990s, through the Marine Environment Protection Committee (MEPC), adopted a resolution recommending that member governments adopt measures to eliminate TBT-based antifouling paints. These recommendations have led to the identification, development, and application of new antifouling technologies that could provide the maritime industry with a significant potential opportunity with an innovative, cost-effective, and efficient approach to the effects of marine biofouling. Our study aimed to make a small incursion in time, through the specialized literature on methods used to combat marine fouling, to highlight new research approaches to the identification and use of natural biocides to replace chemical ones. The targeting of research directions towards the identification of the most environmentally friendly antifouling compounds, in particular natural marine compounds, has been a focus of international researchers in recent years. To achieve this goal, going back to nature is currently the best option, as it could provide us with very effective models for research and development of antifouling coatings. In the development and modeling of new antifouling paints, the influence of the physical-chemical parameters of seawater (pH, salinity, temperature) on the chemical components (active groups) of the biocides used should not be ignored. The aim of this study is to highlight the importance of developing new antifouling paint technologies using biodegradable, non-toic, and environmentally friendly compounds according to international legislation. In recent years there has been an increasing emphasis in research studies on the combination of natural biocides (obtained through the valorization of marine wastes) with natural or synthetic hydrogels whose action is to minimize the attachment of marine fouling.

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“…Due to the exible deformation of loach's body, tiny scale distribution on the body surface, and the mucus retained on the scales, the DR performance of the loach is maximized. 25,26 Although the microstructure of the loach body surface triggers inspiration for the design of the bionic surface and has achieved some positive results on DR and anti-fouling, [27][28][29] further in-depth analysis on DR mechanisms is required and preparation of large-area microstructure for application is a challenge as well. In this study, the scale morphology of the loach was described, and the most appropriate structural characteristic parameters were selected.…”

Section: Introductionmentioning

confidence: 99%