Results 11 to 20 of about 14,454,704 (305)
Fisheries bycatch risk to marine megafauna is intensified in Lagrangian coherent structures. [PDF]
Proc Natl Acad Sci U S A, 2018 Significance Marine capture fisheries provide a valuable source of protein and are economically important in coastal communities. However, fisheries sustainability is impacted by incidental capture of nontarget species (bycatch), which remains a major ...
Scales KL +6 more
europepmc +2 more sources
Objective Eulerian coherent structures [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2016 We define objective Eulerian Coherent Structures (OECSs) in two-dimensional, non-autonomous dynamical systems as the instantaneously most influential material curves. Specifically, OECSs are stationary curves of the averaged instantaneous material stretching-rate or material shearing-rate functionals.
Mattia Serra, George Haller
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Coherent structure colouring: identification of coherent structures from sparse data using graph theory [PDF]
Journal of Fluid Mechanics, 2016 We present a frame-invariant method for detecting coherent structures from Lagrangian flow trajectories that can be sparse in number, as is the case in many fluid mechanics applications of practical interest. The method, based on principles used in graph colouring and spectral graph drawing algorithms, examines a measure of the kinematic dissimilarity ...
Schlueter-Kuck, Kristy L. +1 more
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Nonlinear coherent structures in granular crystals [PDF]
Journal of Physics: Condensed Matter, 2017 The study of granular crystals, 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 dynamics, and condensed-matter physics.
Chong, C. +3 more
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Generalized Lagrangian coherent structures [PDF]
Physica D: Nonlinear Phenomena, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Balasuriya, S. +2 more
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Coherent structures in wall-bounded turbulence
Anais da Academia Brasileira de Ciências, 2015 The inherent difficulty of understanding turbulence has led to researchers attacking the topic in many different ways over the years of turbulence research.
David J.C. Dennis
doaj +2 more sources
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 ...
G. Haller
semanticscholar +4 more sources
Turbulence and the dynamics of coherent structures. I. Coherent structures [PDF]
Quarterly of Applied Mathematics, 1987 L. Sirovich
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Optimal eddy viscosity for resolvent-based models of coherent structures in turbulent jets [PDF]
Journal of Fluid Mechanics, 2020 Response modes computed via linear resolvent analysis of a turbulent mean-flow field have been shown to qualitatively capture characteristics of the observed turbulent coherent structures in both wall-bounded and free shear flows.
Ethan Pickering +4 more
semanticscholar +1 more source
Spectral proper orthogonal decomposition and resolvent analysis of near-wall coherent structures in turbulent pipe flows [PDF]
Journal of Fluid Mechanics, 2020 Direct numerical simulations, performed with a high-order spectral-element method, are used to study coherent structures in turbulent pipe flow at friction Reynolds numbers $Re_{\tau } = 180$ and $550$.
Leandra I. Abreu +4 more
semanticscholar +1 more source