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Holography of the QGP Reynolds number

open access: yesNuclear Physics B, 2017
The viscosity of the Quark–Gluon Plasma (QGP) is usually described holographically by the entropy-normalized dynamic viscosity η/s. However, other measures of viscosity, such as the kinematic viscosity ν and the Reynolds number Re, are often useful, and ...
Brett McInnes
doaj   +6 more sources

Swimming at low Reynolds number [PDF]

open access: yesESAIM: Proceedings and Surveys, 2020
We address the swimming problem at low Reynolds number. This regime, which is typically used for micro-swimmers, is described by Stokes equations. We couple a PDE solver of Stokes equations, derived from the Feel++ finite elements library, to a quaternion-
Berti Luca   +2 more
doaj   +6 more sources

Population dynamics at high Reynolds number [PDF]

open access: yesPhysical Review Letters, 2010
We study the statistical properties of population dynamics evolving in a realistic two-dimensional compressible turbulent velocity field. We show that the interplay between turbulent dynamics and population growth and saturation leads to quasi ...
A. Kolmogorov   +9 more
core   +10 more sources

Low Reynolds Number Swimming Near Interfaces in Multi-Fluid Media [PDF]

open access: yesApplied Sciences, 2021
Microorganisms often swim within heterogeneous fluid media composed of multiple materials with very different properties. The swimming speed is greatly affected by the composition and rheology of the fluidic environment.
Avriel Cartwright, Jian Du
doaj   +2 more sources

Reynolds number effects on the Reynolds-stress budgets in turbulent channels [PDF]

open access: yesPhysics of Fluids, 2008
Budgets for the nonzero components of the Reynolds-stress tensor are presented for numerical channels with Reynolds numbers in the range Reτ ≤180–2000. The scaling of the different terms is discussed, both above and within the buffer and viscous layers ...
Javier Jiménez   +3 more
core   +4 more sources

Low-Reynolds number swimming in gels [PDF]

open access: yesEPL (Europhysics Letters), 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   +4 more sources

Lagrangian controllability at low Reynolds number [PDF]

open access: yesESAIM: Control, Optimisation and Calculus of Variations, 2016
In this paper, we establish a result of Lagrangian controllability for a fluid at low Reynolds number, driven by the stationary Stokes equation. This amounts to the possibility of displacing a part of a fluid from one zone to another by suitably using a ...
Glass, O., Horsin, T.
core   +6 more sources

Turbulence Model Selection for Low Reynolds Number Flows. [PDF]

open access: yesPLoS ONE, 2016
One of the major flow phenomena associated with low Reynolds number flow is the formation of separation bubbles on an airfoil's surface. NACA4415 airfoil is commonly used in wind turbines and UAV applications.
S M A Aftab   +3 more
doaj   +2 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.
Lionel Bureau   +2 more
openaire   +4 more sources

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