Results 11 to 20 of about 985,828 (341)

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   +9 more sources

Reynolds-number dependence of turbulence enhancement on collision growth [PDF]

open access: goldAtmospheric Chemistry and Physics, 2016
This study investigates the Reynolds-number dependence of turbulence enhancement on the collision growth of cloud droplets. The Onishi turbulent coagulation kernel proposed in Onishi et al.
R. Onishi, A. Seifert
doaj   +2 more sources

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

open access: yes, 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   +2 more sources

Turbulence via Intermolecular Potential: Viscosity and Transition Range of the Reynolds Number

open access: yesFluids, 2023
Turbulence in fluids is an ubiquitous phenomenon, characterized by spontaneous transition of a smooth, laminar flow to rapidly changing, chaotic dynamics.
Rafail V. Abramov
doaj   +1 more source

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

Reynolds number dependence of scalar fluctuations in a high Schmidt number turbulent jet [PDF]

open access: yes, 1991
The scalar rms fluctuations in a turbulent jet were investigated experimentally, using high-resolution, laser-induced fluorescence techniques. The experiments were conducted in a high Schmidt number fluid (water), on the jet centerline, over a jet ...
Dimotakis, Paul E., Miller, Paul L.
core   +1 more source

A new friction factor relationship for fully developed pipe flow [PDF]

open access: yes, 2005
The friction factor relationship for high-Reynolds-number fully developed turbulent pipe flow is investigated using two sets of data from the Princeton Superpipe in the range 31×10^3 ≤ ReD ≤ 35×10^6. The constants of Prandtl’s ‘universal’ friction factor
McKeon, B. J.   +2 more
core   +1 more source

Numerical Study on Vortices in Collision of Flow with Circular, Square, Triangular, and Pentagonal Barriers of Different Diameters [PDF]

open access: yesرویکردهای نوین در مهندسی آب و محیط زیست, 2023
Numerical Study on Vortices in Collision of Flow with Circular, Square, Triangular, and Pentagonal Barriers of Different DiametersStructures constructed on rivers induce downstream oscillating vortices.
Saja Kanan, Mohammad Heidarnejad
doaj   +1 more source

Reynolds-number effects and anisotropy in transverse-jet mixing [PDF]

open access: yes, 2006
Experiments are described which measured concentration fields in liquid-phase strong transverse jets over the Reynolds-number range 1.0×10^3 ≤ Rej ≤ 20×10^3. Laser-induced-fluorescence measurements were made of the jet-fluid-concentration fields at a jet-
Dimotakis, Paul E., Shan, Jerry W.
core   +1 more source

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

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