Results 21 to 30 of about 14,454,704 (305)

Graph-Cut RANSAC: Local Optimization on Spatially Coherent Structures

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2021
We propose Graph-Cut RANSAC, GC-RANSAC in short, a new robust geometric model estimation method where the local optimization step is formulated as energy minimization with binary labeling, applying the graph-cut algorithm to select inliers. The minimized
D. Barath, Jiri Matas
semanticscholar   +1 more source

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

Proper Orthogonal Decomposition Analysis of an Airfoil Performances under a Small Vortical Gust [PDF]

open access: yesJournal 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
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
semanticscholar   +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

Numerical Simulation of Two-Dimensional Turbulent Dilatable Flows in a Fire

open access: yesFire, 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
doaj   +1 more source

Droplets. I. Pressure-dominated Coherent Structures in L1688 and B18 [PDF]

open access: yesAstrophysical Journal, 2018
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, we identify regions of high density and near-constant, almost ...
H. Chen   +24 more
semanticscholar   +1 more source

Evaluation of a Serrated Edge to Mitigate the Adverse Effects of a Backward-Facing Step on an Airfoil

open access: yesInventions, 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
doaj   +1 more source

Numerical Simulation of Coherent Structures in the Turbulent Boundary Layer under Different Stability Conditions

open access: yesEnergies, 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
doaj   +1 more source

Coherent Structures at Ion Scales in Fast Solar Wind: Cluster Observations [PDF]

open access: yes, 2017
We investigate the nature of magnetic turbulent fluctuations, around ion characteristic scales, in a fast solar wind stream, by using Cluster data.
D. Perrone   +7 more
semanticscholar   +1 more source

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