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Predicting Coherent Turbulent Structures via Deep Learning
Frontiers 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
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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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Lagrangian coherent structures in tropical cyclone intensification [PDF]
Atmospheric 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
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Proper Orthogonal Decomposition Analysis of an Airfoil Performances under a Small Vortical Gust [PDF]
Journal of Applied Fluid Mechanics, 2022 This paper investigates the performance of a non-symmetric airfoil in a perturbed flow for a low Reynolds number by creating small vortical structures.
M. M. Oueslati +2 more
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Numerical Simulation of Two-Dimensional Turbulent Dilatable Flows in a Fire
Fire, 2023 Numerical simulations, based on the theories of computational fluid dynamics and combustion, are currently a powerful tool in the field of fire engineering.
Carlos Muñoz-Blanc
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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
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Inventions, 2023 Backward-facing steps are commonly formed on wings and blades due to misalignment between segments or the addition of protective films. A backward-facing step (BFS) is known to degrade the airfoil performance.
Real J. KC +5 more
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Droplets I: Pressure-Dominated Sub-0.1 pc Coherent Structures in L1688 and B18 [PDF]
, 2019 We present the observation and analysis of newly discovered coherent structures in the L1688 region of Ophiuchus and the B18 region of Taurus. Using data from the Green Bank Ammonia Survey (GAS), we identify regions of high density and near-constant ...
Alves, Felipe +24 more
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Energies, 2020 Coherent structures in the turbulent boundary layer were investigated under different stability conditions. Qualitative analyses of the flow field, spatial correlation coefficient field and pre-multiplied wind velocity spectrum showed that the dominant ...
Shujin Laima +3 more
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Localization and Coherence in Nonintegrable Systems [PDF]
, 2003 We study the irreversible dynamics of nonlinear, nonintegrable Hamiltonian oscillator chains approaching their statistical asympotic states. In systems constrained by more than one conserved quantity, the partitioning of the conserved quantities leads ...
Ablowitz +26 more
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