Results 11 to 20 of about 865,198 (295)

Lagrangian Coherent Structures

Annual Review of Fluid Mechanics, 2015
Typical fluid particle trajectories are sensitive to changes in their initial conditions. This makes the assessment of flow models and observations from individual tracer samples unreliable. Behind complex and sensitive tracer patterns, however, there exists a robust skeleton of material surfaces, Lagrangian coherent structures (LCSs), shaping those ...
George Haller
exaly   +5 more sources

Generalized Lagrangian coherent structures [PDF]

Physica D: Nonlinear Phenomena, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Balasuriya, S., Ouellette, N., Rypina, I.   +2 more
openaire   +4 more sources

A Study on Flux Contributions of Turbulent Coherent Structures over Forest Underlying Surfaces Using the CEEMD Method [PDF]

Gaoyuan qixiang
In order to study the turbulent coherent structure characteristics under the complex underlying surface of forests， three-layer turbulence data set up at 1.33 times， 2.53 times， and 3.86 times canopy degrees in the artificial forest area of Mount Si E in
Yanqi WANG, Yu ZHANG, Youqi SU, Qian ZHANG, min YE
doaj   +1 more source

Low-dimensional dynamical system model for observed coherent structures in ocean satellite data [PDF]

, 2000
The dynamics of coherent structures present in real-world environmental data is analyzed. The method developed in this Paper combines the power of the Proper Orthogonal Decomposition (POD) technique to identify these coherent structures in experimental ...
Achatz, Aubry, Aubry, Berkooz, Bouzinac, Bretherton, Cristóbal López, Cushman-Roisin, Deane, Emilio Hernández-Garcı́a, End, Ghil, Guckenheimer, Hasselmann, Holmes, Holmes, Kwasniok, Kwasniok, Le Traon, Le Traon, Lesieur, Lumley, López, North, Okubo, Palacios, Pedlosky, Preisendorfer, Qin, Rodrı́guez, Sahan, Sirovich, Sirovich, Uhl, Álvarez   +34 more
core   +2 more sources

Coherent structures in oscillatory flows within the laminar-to-turbulent transition regime for smooth and rough walls [PDF]

, 2016
This is an Accepted Manuscript of an article published by Taylor & Francis Group in [Journal of hydraulic research] on [2016], available online at: http://www.tandfonline.com/10.1080/00221686.2016.1174960We investigate coherent structures present in ...
Bateman Pinzón, Allen, Christensen, Kenneth T., Garcia, Marcelo Horacio, Mujal Colilles, Anna   +3 more
core   +3 more sources

Lagrangian coherent structures in nonlinear dynamos [PDF]

, 2011
Turbulence and chaos play a fundamental role in stellar convective zones through the transportof particles, energy and momentum, and in fast dynamos, through the stretching, twisting and folding of magnetic flux tubes.
Balsara, Brandenburg, Brandenburg, Childress, Colaninno, Käpylä, Padberg, Woodard   +7 more
core   +2 more sources

Structured transmittance illumination coherence holography

Scientific Reports, 2022
AbstractThe coherence holography offers an unconventional way to reconstruct the hologram where an incoherent light illumination is used for reconstruction purposes, and object encoded into the hologram is reconstructed as the distribution of the complex coherence function. Measurement of the coherence function usually requires an interferometric setup
Aditya Chandra Mandal, Tushar Sarkar, Zeev Zalevsky, Rakesh Kumar Singh   +3 more
openaire   +4 more sources

Vortical Structures in High-Reynolds-Number Jet Indicating Edgetone Oscillation

Journal of Fluid Science and Technology, 2007
Coherent vortical structures in a high-Reynolds number turbulent jet indicating edgetone oscillations are extracted from velocity and pressure data. Three statistical quantities are adopted as the candidate indicators of coherent structures; (i) phase ...
Yuta KAWAI, Yoshiyuki TSUJI, Yutaka KUKITA   +2 more
doaj   +1 more source

Studying geometric structures in meso-scale flows

Frontiers in Environmental Science, 2014
Geometric shapes of coherent structures such as ramp or cliff like signals, step changes and waves, are commonly observed in meteorological temporal series and dominate the turbulent energy and mass exchange between the atmospheric surface layer and the ...
Christos H. Halios, Costas G. Helmis, Dimosthenis N. Asimakopoulos   +2 more
doaj   +1 more source

Local Causal States and Discrete Coherent Structures [PDF]

, 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, Ball P., Bishop C. M., Brookshear J. G., Bénard H., Ceccherini-Silberstein T., Chandrasekhar S., Cook M., Cross M. C., Crutchfield J. P., Crutchfield J. P., Crutchfield J. P., Crutchfield J. P., Flake W. G., Goerg G. M, Goerg G. M., Golubitsky M., Haken H., Haken H., Hedlund G. A., Holcombe W. M. L., Holmes P., Hopcroft J. E., Hoyle R., James P. Crutchfield, Jänicke H., Lawson M. V., Lind D., Lizier J. T., Markov I. V., Minsky M., Nakaya U., Nicolis G., Prabhat, Reichl L. E., Rhodes J., Sethna J. P., Shalizi C. R., Steinberg V., Takens F., Tung W.-K., Van Dyke M.   +41 more
core   +3 more sources