Structure, biomimetics, and fluid dynamics of fish skin surfaces *

@inproceedings{Lauder2016StructureBA,
  title={Structure, biomimetics, and fluid dynamics of fish skin surfaces *},
  author={George V. Lauder and Dylan K. Wainwright and August G. Domel and James C. Weaver and Li Wen and Katia Bertoldi},
  year={2016}
}
A overview of the coupling between surface roughness, in the form of scales or denticles, and the hydrodynamics of effective swimming is presented. 
Hydrodynamic properties of biomimetic shark skin: effect of denticle size and swimming speed.
TLDR
The results provide new insights into the role of denticle size in shark swimming hydrodynamics across a range of locomotory modes, while simultaneously providing new design guidelines for the production of high performance low drag surface coatings for aquatic and aerospace applications. Expand
Mucus Matters: The Slippery and Complex Surfaces of Fish
TLDR
Topographic, three-dimensional, analyses of fish skin surfaces from seven species with the mucus, epidermis, and relative positions of scales intact are presented to show a previously unexplored axis of diversity in fish: how mucus and epidersmis interact with scale morphology to create surface texture. Expand
Streak formation in flow over biomimetic fish scale arrays
TLDR
Fish scale arrays produce steady laminar streaks inside the boundary layer of the fish, which reduces the skin friction drag and could delay transition, it is hypothesised that the fish scales coulddelay transition, which would further reduce the drag. Expand
Quantifying surface topography of biological systems from 3D scans
There is notable variation in body shape and form among different living organisms, and morphologists have been instrumental in using a wide variety of visualization techniques to better understandExpand
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TLDR
This research demonstrates that denticles play a similar role as vortex generators in energizing the boundary layer to decrease drag, and can be applied to a vast number of fields including aeronautics, oceanic, and automotive engineering. Expand
Creation of a prototype biomimetic fish to better understand impact trauma caused by hydropower turbine blade strikes
Biomimetic model organisms could be useful surrogates for live animals in many applications if the models have sufficient biofidelity. One such application is for use in field and laboratory tests ofExpand
Dermal Denticles of Three Slowly Swimming Shark Species: Microscopy and Flow Visualization
TLDR
It is demonstrated that the flow pattern near natural shark skin can be measured by micro-PIV (particle image velocimetry) and microfluidic experiments are complemented by numerical flow simulations that visualize unsteady flow, small eddies, and recirculation bubbles behind the natural dermal denticles. Expand
Shark skin-inspired designs that improve aerodynamic performance
TLDR
A set of denticle-inspired surface structures are discovered that achieve simultaneous drag reduction and lift generation on an aerofoil, resulting in lift-to-drag ratio improvements comparable to the best-reported for traditional low-profile vortex generators and even outperforming these existing designs at low angles of attack with improvements of up to 323%. Expand
Bioinspired Functional Surfaces Enabled by Multiscale Stereolithography
DOI: 10.1002/admt.201800638 known as denticles that are thought to be multifunctional. It has been hypothesized that these surface features prevent biofouling and, more importantly, reduce fluidExpand
Development of Mixed Flow Fans with Bio-Inspired Grooves
TLDR
Inspired by the microgrooves such as riblets and denticles on bird feathers and shark skins, biomimetic designs of various blades with the bio-inspired grooves are proposed, aiming at the improvement of the aeroacoustic performance. Expand
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Quantitative hydrodynamic comparisons among skin models where control over manufacture allows alteration of design parameters provides a useful experimental tool for future work on the considerable natural diversity of shark skin denticles both among species and on different body locations. Expand
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TLDR
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