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Dataset results
12 results for “Drag reduction”
Fluid Drag Reduction by Magnetic Confinement
<p>Drag reduction of viscous liquid (Honey) with ferrofluid APG314.</p> <p>Friction factors and Reynolds number.</p> <p>Numerical simulations</p> <p>Microfluidics drag reduction</p> <p> </p>
5D-NP-FABTECH_SALV - Open Dataset for "3D Micropatterned Functional Surface Inspired by Salvinia Molesta via Direct Laser Lithography for Air Retention and Drag Reduction"
<p>This is the open dataset for the paper: "Omar Tricinci*, Francesca Pignatelli, Virgilio Mattoli*, 3D Micropatterned Functional Surface Inspired by Salvinia Molesta via Direct Laser Lithography for Air Retention and Drag Reduction, On line (2023) [DOI: 10.1002/adfm.202206946] "</p> <p>This include the Supplementary Information file ("SI-PaperSalvinia3_PostRevOKV2.pdf.pdf"), all the source material used for the paper preparation and more. </p> <p>For each folder (sub-dataset) there is a corresponding readme file describing the content and including metadata</p>
Data from: Computational fluid dynamics confirms drag reduction associated with trilobite queuing behaviour
<p>Queuing behaviour has been documented in marine arthropods from Cambrian to modern oceans. One possible explanation of this behaviour is drag reduction, with trilobites in the following positions hypothesized to produce less drag than those leading. In this study, we evaluate the hydrodynamics of queuing behaviour in the Devonian trilobite Trimerocephalus chopini using computational fluid mechanics. Our results show that the drag forces of the trilobites following in the queue were substantially lower than those produced by the leader (75.1% lower at 2 cm s-1). Drag reduction is positively correlated with the movement speed of the trilobites, but decreases with increasing distance from the leader. Our results support the hypothesis that the queuing behaviour of trilobites was an adaptation for reducing hydrodynamic drag. This drag reduction effect compensated for the energy cost of movement, which would have been particularly advantageous during migration.</p>
Data from: Computational fluid dynamics confirms drag reduction associated with trilobite queuing behaviour
Open the record for dataset details and reuse information.
Supplementary data for paper: Extremum seeking to control the amplitude and frequency of a pulsed jet for bluff body drag reduction
<p>Data accompanying the Experiments in Fluids paper entitled: Extremum seeking to control the amplitude and frequency of a pulsed jet for bluff body drag reduction. http://dx.doi.org/10.1007/s00348-016-2243-4.</p> <p>Zipped files contain the folders of data, while the .mat files contain Matlab scripts to generate the plots in the paper.</p>
F I G U R E 3 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 3 (a)–(d) Misgurnus anguillicaudatus skin stained with phosphotungstic acid (PTA) and (e)–(f) stained with osmium tetroxide. (a) 3D Xray micro CT × 10 magnification image of loach skin showing the transect line () along which a (b) horizontal sectional X-ray image was extracted., The mucous layer;, pore of mucous secreting gland;, sections through scales. (c) A typical 3D X-ray micro CT image of loach scales;, the borders of scales. (d) X-ray image with ×40 magnification of scales showing radii () and circuli (). (e) 3D SR-μCT image of surface ornamentations consisting of radii and circuli in the sampling area A (Figure 3d). (f) Horizontal sectional X-ray image of surface ornamentations along the white dashed line in Figure 3(e):, the radii;, the circuli;, the basement membrane
F I G U R E 2 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 2 (a) SEM image of Misgurnus anguillicaudatus skin:, the mucous layer;, a scale. (b) Magnified surface of loach skin and (c) morphological structure of loach scale
F I G U R E 5 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 5 Reduction of skin friction acting on Misgurnus anguillicaudatus surface with mucus layer according to Reynolds number (Rex)
F I G U R E 4 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 4 Dark-field OCT images of (a) skin of Misgurnus anguillicaudatus covered by mucus () and (b) the loach skin from which mucus layer was removed ():, the mass of mucus removed from the loach. (c) The lateral flat-skin region and cross-sectional microstructures of loach skin (d) with and (e) without mucus. (f) The lateral region of concave loach skin (g) with and (h) without mucus. (i) The lateral region of convex loach skin (j) with and (k) without mucus., Loach scales
F I G U R E 1 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 1 (a) A lateral view of Misgurnus anguillicaudatus showing the region from which tissue samples were collected () and (b) smaller samples sectioned out for SEM and SR-μCT imaging ()
F I G U R E 6 in Morphological features of mucous secretory organ and mucous secretion of loach Misgurnus anguillicaudatus skin for friction drag reduction
F I G U R E 6 Schematic model for mucous secretion: (a) cross-sectional view of convex loach skin. When mucous is removed from the epidermal surface, the secreting gland cells are ruptured and their contents are forced out to cover the surface layer. (b) Cross-sectional view of concave loach skin. Empty space between the mucous layer and scales. (c) 3D schematic view of convex loach skin. Mucus is secreted from the mucous gland cells located in the outer layer of the skin covering the scales. Epidermal surface is covered with mucous concentrate
Data for Typhoon Modelling with Observed Drag Reduction over Land as well as in-situ Observations
<p>No description provided.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.