Results 11 to 20 of about 780,077 (343)

Three-Dimensional Low Reynolds Number Flows near Biological Filtering and Protective Layers

open access: yesFluids, 2017
Mesoscale filtering and protective layers are replete throughout the natural world. Within the body, arrays of extracellular proteins, microvilli, and cilia can act as both protective layers and mechanosensors.
Christopher Strickland   +5 more
doaj   +3 more sources

Three-sphere swimmer in two dimensions at low Reynolds number condition [PDF]

open access: yesمهندسی مکانیک شریف, 2022
Being widely ubiquitous in fluidic mediums from aquatic environments to bodies, for the sake of their mobility, microorganisms, such as bacteria and motile cells, make use of particular swimming strategies that are counter-intuitive to that of our daily ...
A. Sheikhshoaei, M. Rajabi
doaj   +1 more source

Lift at low Reynolds number

open access: yesThe European Physical Journal E, 2023
Lift forces are widespread in hydrodynamics. These are typically observed for big and fast objects, and are often associated with a combination of fluid inertia (i.e. large Reynolds numbers) and specific symmetry-breaking mechanisms. In contrast, the properties of viscosity-dominated (i.e.
Bureau, Lionel   +2 more
openaire   +5 more sources

Stochastic low Reynolds number swimmers [PDF]

open access: yesJournal of Physics: Condensed Matter, 2009
As technological advances allow us to fabricate smaller autonomous self-propelled devices, it is clear that at some point directed propulsion could not come from pre-specified deterministic periodic deformation of the swimmer's body and we need to develop strategies to extract a net directed motion from a series of random transitions in the ...
Golestanian, R. ; https://orcid.org/0000-0002-3149-4002   +1 more
openaire   +5 more sources

Optimal Swimming at Low Reynolds Numbers [PDF]

open access: yesPhysical Review Letters, 2004
Efficient swimming at low Reynolds numbers is a major concern of microbots. To compare the efficiencies of different swimmers we introduce the notion of ``swimming drag coefficient'' which allows for the ranking of swimmers. We find the optimal swimmer within a certain class of two dimensional swimmers using conformal mappings techniques.
Avron, J. E., Gat, O., Kenneth, O.
openaire   +3 more sources

Scattering of low-Reynolds-number swimmers [PDF]

open access: yesPhysical Review E, 2008
We describe the consequences of time reversal invariance of the Stokes' equations for the hydrodynamic scattering of two low Reynolds number swimmers. For swimmers that are related to each other by a time reversal transformation this leads to the striking result that the angle between the two swimmers is preserved by the scattering.
Alexander, G, Pooley, C, Yeomans, J
openaire   +4 more sources

Analysis of low Reynolds number flow past Gurney flap [PDF]

open access: yesINCAS Bulletin, 2010
The trailing edge region of a single element wing fitted with Gurney flap at low Reynoldsnumbers has been studied.The complex flow separation phenomena on airfoils with Gurney flap at low Reynolds numbershave some specific features as the separation on ...
Ion MĂLĂEL, Horia DUMITRESCU
doaj   +1 more source

Low-Reynolds-number swimming at pycnoclines. [PDF]

open access: yesProc Natl Acad Sci U S A, 2012
Microorganisms play pivotal functions in the trophic dynamics and biogeochemistry of aquatic ecosystems. Their concentrations and activities often peak at localized hotspots, an important example of which are pycnoclines, where water density increases sharply with depth due to gradients in temperature or salinity.
Doostmohammadi A   +2 more
europepmc   +5 more sources

Flow around an Oscillating Cylinder at Low Reynolds Number with Forced Convection: Effect of Corner Radius and Reynolds Number

open access: yesEnergies, 2022
This numerical study investigated the flow-induced vibration (FIV) on non-heated and heated cylinders with different normalized corner radii (r*) at different Reynolds numbers (Re).
Yuvraj Sarout   +3 more
doaj   +1 more source

Research on wellhead flow detection method at low Reynolds number

open access: yesInternational Journal of Thermofluids, 2023
The detection of wellhead fluid flow is critical in the development of low-production wells. The production status can be evaluated according to the flow of production wells. The thermal flowmeter designed in this paper mainly measures the flow of single-
Hongwei Qin, Ruirong Dang, Bo Dang
doaj   +1 more source

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