Results 51 to 60 of about 10,556,792 (334)

Wing Efficiency Enhancement at Low Reynolds Number

open access: yesAerospace
The aerodynamic performance of wings degrades severely at low Reynolds number; lift often becomes non-linear, while drag increases significantly, caused by large extents of separation.
Lance W. Traub
doaj   +1 more source

Rotational Maneuvers of Copepod Nauplii at Low Reynolds Number

open access: yesFluids, 2020
Copepods are agile microcrustaceans that are capable of maneuvering freely in water. However, the physical mechanisms driving their rotational motion are not entirely clear in small larvae (nauplii).
Kacie T. M. Niimoto   +4 more
doaj   +1 more source

Low-Reynolds number swimming in gels

open access: yes, 2010
Many microorganisms swim through gels, materials with nonzero zero-frequency elastic shear modulus, such as mucus. Biological gels are typically heterogeneous, containing both a structural scaffold (network) and a fluid solvent.
Happel J.   +8 more
core   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

High-Reynolds-Number Turbulence Database: AeroFlowData

open access: yesScientific Data
Turbulence widely appears in natural and industrial environments, with its multi-scale structures posing significant challenges for accurate simulation and prediction.
Weiwei Zhang   +18 more
doaj   +1 more source

Numerical investigation on heat transfer behavior of thermally developing flow inside rectangular microchannels

open access: yesCase Studies in Thermal Engineering, 2021
A numerical investigation is conducted to study the heat transfer characteristics of laminar flow in three-dimensional rectangular microchannels with aspect ratios of 0.1–1 and Reynolds numbers of 5–400.
Hao Ma   +3 more
doaj   +1 more source

Spectral imbalance and the normalized dissipation rate of turbulence

open access: yes, 2007
The normalized turbulent dissipation rate $C_\epsilon$ is studied in decaying and forced turbulence by direct numerical simulations, large-eddy simulations, and closure calculations.
J.-P. Bertoglio   +5 more
core   +2 more sources

Effects of Reynolds Number on the Energy Conversion and Near-Wake Dynamics of a High Solidity Vertical-Axis Cross-Flow Turbine

open access: yes, 2016
Experiments were performed with a large laboratory-scale high solidity cross-flow turbine to investigate Reynolds number effects on performance and wake characteristics and to establish scale thresholds for physical and numerical modeling of individual ...
P. Bachant, M. Wosnik
semanticscholar   +1 more source

Cold Quad‐Modal Nanocomplex for Precise and Quantitative In Vivo Stem Cell Tracking

open access: yesAdvanced Functional Materials, EarlyView.
Multimodal albumin–bismuth sulfide–superparamagnetic iron oxide (ABS) nanocomplexes are developed for stem cell tracking across four different imaging modalities: MRI, MPI, MSOT, and CT. Combining its flexibility with high sensitivity, this quad‐modal imaging agent enables a robust quantification of ABS‐labeled stem cells in vivo.
Ali Shakeri‐Zadeh   +4 more
wiley   +1 more source

Relation between shear parameter and Reynolds number in statistically stationary turbulent shear flows

open access: yes, 2004
Studies of the relation between the shear parameter S^* and the Reynolds number Re are presented for a nearly homogeneous and statistically stationary turbulent shear flow.
Jörg Schumacher, Kolmogorov A. N.
core   +1 more source

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