Population dynamics at high Reynolds number [PDF]
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]
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]
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
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]
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]
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]
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]
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]
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]
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

