Results 11 to 20 of about 19,278,057 (340)

Objective Eulerian coherent structures. [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2015
We define objective Eulerian Coherent Structures (OECSs) in two-dimensional, non-autonomous dynamical systems as the instantaneously most influential material curves.
M. Serra, G. Haller
semanticscholar   +7 more sources

Nonlinear coherent structures in granular crystals [PDF]

open access: yesJournal of Physics: Condensed Matter, 2016
The study of granular crystals, which are nonlinear metamaterials that consist of closely packed arrays of particles that interact elastically, is a vibrant area of research that combines ideas from disciplines such as materials science, nonlinear ...
C. Chong   +3 more
semanticscholar   +6 more sources

Local Causal States and Discrete Coherent Structures [PDF]

open access: yesChaos, 2018
Coherent structures form spontaneously in nonlinear spatiotemporal systems and are found at all spatial scales in natural phenomena from laboratory hydrodynamic flows and chemical reactions to ocean, atmosphere, and planetary climate dynamics ...
Adam Rupe, J. Crutchfield
semanticscholar   +3 more sources

Coherent structures [PDF]

open access: yes, 1987
In order to develop more quantitative measures of coherent structures that would have comparative value over a range of experiments, it is essential that such measures be independent of the observer.
Speziale, Charles G.
core   +2 more sources

Numerical analysis of flow structures and bed entrainment in turbulent open-channel flow [PDF]

open access: yes, 2009
PhDThe results from a Direct Numerical Simulation (DNS) and a Large Eddy Simulation (LES) are employed to study the large-scale coherent structures and bed entrainment in the turbulent open-channel flow.
Ma, Jianmin
core   +4 more sources

Predicting Coherent Turbulent Structures via Deep Learning

open access: yesFrontiers in Physics, 2022
Turbulent flow is widespread in many applications, such as airplane wings or turbine blades. Such flow is highly chaotic and impossible to predict far into the future.
D. Schmekel   +3 more
doaj   +1 more source

Lagrangian coherent structures in tropical cyclone intensification [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Recent work has suggested that tropical cyclones intensify via a pathway of rotating deep moist convection in the presence of enhanced fluxes of moisture from the ocean.
B. Rutherford   +2 more
doaj   +1 more source

Coherent structures in wall-bounded turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
This article discusses the description of wall-bounded turbulence as a deterministic high-dimensional dynamical system of interacting coherent structures, defined as eddies with enough internal dynamics to behave relatively autonomously from any ...
J. Jiménez, A. Lozano-Durán
semanticscholar   +1 more source

On the Wake Dynamics of an Oscillating Cylinder via Proper Orthogonal Decomposition

open access: yesFluids, 2022
The coherent structures and wake dynamics of a two-degree-of-freedom vibrating cylinder with a low mass ratio at Re=5300 are investigated by means of proper orthogonal decomposition (POD) of a numerical database generated using large-eddy simulations ...
Benet Eiximeno   +4 more
doaj   +1 more source

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