Results 71 to 80 of about 921 (215)

Turbulent shear flow downstream of a sphere with and without an o-ring located over a plane boundary

open access: yesEPJ Web of Conferences, 2012
Flow-structure interaction of separated shear flow from the sphere and a flat plate was investigated by using dye visualization and the particle image velocimetry technique. Later, a passive control method was applied with 2mm oring located on the sphere
Sahin Besir   +4 more
doaj   +1 more source

Numerical simulation of confined flows past obstacles – the comparative study of Lattice Boltzmann and Spectral Element Methods

open access: yesArchives of Mechanics, 2012
This paper concerns the Lattice Boltzmann Method (LBM) which has recently become alternative, computationally efficient tool to simulate a Newtonian fluid flow, especially in complex geometries.
W. Regulski, J. Szumbarski
doaj   +1 more source

Visualizing Image Segmentation Network Behavior Through the Lens of Scale Space Analysis

open access: yesComputer Graphics Forum, EarlyView.
Abstract Deep neural networks are widely used for image segmentation, also in sensitive applications such as medical imaging or autonomous driving. However, few explainable AI methods are available that help developers understand such networks beyond classification.
A. C. Mikliss, T. Schultz
wiley   +1 more source

Vortex merging in the vortex street behind a circular cylinder.

open access: yesJournal of the Japan Society for Aeronautical and Space Sciences, 1988
The mechanism of rearrangement of the vortex street in the wake behind a circular cylinder at low Reynolds numbers was investigated in a low speed wind tunnel. The pairing of two vortices in the streamwise vortex rows of the so-called Karman vortex street took place downstream of the primary vortex street of regular arrangement at Reynolds numbers ...
OKUDE, Muneshige, MATSUI, Tatsuya
openaire   +2 more sources

Formation of Periodic Vortex Streets Driven by the Lorents Force [PDF]

open access: yes, 1996
Quasi-2D periodic vortex streets, driven by the Lorentz force due to the interaction of a localized magnetic field with an electrolytic current, have been investigated experimentally using a shallow water tank with a movable bottom floor.
Sugihara, Yuji   +5 more
core  

Multiclass convolutional neural network vs. 96 dermatologists in skin lesion diagnosis, an international study

open access: yesJDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Summary Background and objectives Artificial intelligence was shown to improve diagnostic accuracy for skin cancer detection. While most clinically approved models provide binary “benign/malignant” classifications, multiclass predictions may offer greater clinical utility.
Katharina Susanne Kommoss   +11 more
wiley   +1 more source

Artificial Intelligence in Climate and Sustainable Finance: A Blessing or a Curse?

open access: yesJournal of Economic Surveys, EarlyView.
ABSTRACT While there are concerns regarding the sustainability of artificial intelligence (AI), it is a potential ally in the transition toward a greener future. It offers advanced tools for data analysis; risk modeling; and environmental, social, and governance (ESG) assessment.
Filippo di Pietro   +3 more
wiley   +1 more source

An investigation of wall temperature characteristics to evaluate thermal fatigue at a T-junction pipe

open access: yesMechanical Engineering Journal, 2014
Thermal fatigue cracking may initiate at a T-junction pipe where high and low temperature fluids mix. In this study, wall temperature characteristics at a T-junction pipe were investigated to improve the evaluation method for thermal fatigue.
Koji MIYOSHI   +3 more
doaj   +1 more source

Kármán vortex street in incompressible fluid models [PDF]

open access: yesNonlinearity, 2020
Abstract This paper aims to provide a robust model for the well-known phenomenon of Kármán vortex street arising in fluid mechanics. The first theoretical attempt to model this pattern was given by von Kármán (1991 Göttinger Nachr., Math. Phys. Kl . 509–17); von Kármán (1912
openaire   +5 more sources

Unsteady dynamics and organized structures from DNS over an idealized building canopy (In special issue: Urban Climatology ICUC6) [PDF]

open access: yes, 2007
A numerical study is performed to elucidate the dominant turbulent processes that occur in urban areas. Comprehensive data from direct numerical simulations (DNS) over idealized three-dimensional arrays of buildings are analysed to study the unsteady and
Thomas, T. Glyn   +6 more
core   +1 more source

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