Results 21 to 30 of about 117,422 (348)

Recent advancements toward the understanding and control of turbulent flows (Summary of ICJWSF2013)

open access: yesJournal of Fluid Science and Technology, 2014
The 4th International Conference on Jets, Wakes and Separated Flows (ICJWSF2013) was held in Nagoya, Japan, in September 2013. Advanced papers were presented at the conference, contributing to the progress of the research. This report is a summary of the
Kuniaki TOYODA, Riho HIRAMOTO
doaj   +1 more source

Nocturnal boundary layer turbulence regimes analysis during the BLLAST campaign [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
A night-time turbulence regime classification, the so-called “HOckey-Stick Transition ” (HOST) theory, proposed by Sun et al. (2012) from the Cooperative Atmosphere–Surface Exchange Study-1999 (CASES-99) is explored using data from the Boundary-Layer ...
J. Yus-Díez   +7 more
doaj   +1 more source

Resonance enhanced turbulent transport [PDF]

open access: yes, 2007
The effect of oscillatory shear flows on turbulent transport of passive scalar fields is studied by numerical computations based on the results provided by E. Kim [Physics of Plasmas 13, 022308 (2006)] .
Andrew P. L. Newton   +3 more
core   +2 more sources

Three-dimensional smoothed particle hydrodynamics modeling of near-shore current flows over rough topographic surface

open access: yesFrontiers in Marine Science, 2022
In this study, a three-dimensional (3D) numerical model based on the smoothed particle hydrodynamics (SPH) approach was developed to simulate the near-shore current flows over a rough topographic surface in the coastal area, where the flows are shallow ...
Eslam Gabreil   +11 more
doaj   +1 more source

Predictions of turbulent shear flows using deep neural networks [PDF]

open access: yesPhysical Review Fluids, 2019
In the present work we assess the capabilities of neural networks to predict temporally evolving turbulent flows. In particular, we use the nine-equation shear flow model by Moehlis et al. [New J. Phys.
P. A. Srinivasan   +4 more
semanticscholar   +1 more source

A New “λ2” Term for the Spalart–Allmaras Turbulence Model, Active in Axisymmetric Flows

open access: yesFlow Turbulence and Combustion, 2021
The new term belongs in the “basic,” free-shear-flow part of the Spalart–Allmaras (SA) model, and extends an idea of the Secundov team, incorporated in the νt-92 model.
P. Spalart, A. Garbaruk
semanticscholar   +1 more source

An Introduction to Particle Acceleration in Shearing Flows

open access: yesGalaxies, 2019
Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments.
Frank M. Rieger
doaj   +1 more source

Patterns in Wall-Bounded Shear Flows

open access: yesAnnual Review of Fluid Mechanics, 2020
Experiments and numerical simulations have shown that turbulence in transitional wall-bounded shear flows frequently takes the form of long oblique bands if the domains are sufficiently large to accommodate them.
L. Tuckerman, M. Chantry, D. Barkley
semanticscholar   +1 more source

Nature of laminar-turbulence intermittency in shear flows. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2013
In pipe, channel, and boundary layer flows turbulence first occurs intermittently in space and time: at moderate Reynolds numbers domains of disordered turbulent motion are separated by quiescent laminar regions.
Marc Avila, B. Hof
semanticscholar   +1 more source

Atmospheric Turbulence Effects on Wind-Turbine Wakes: An LES Study

open access: yesEnergies, 2012
A numerical study of atmospheric turbulence effects on wind-turbine wakes is presented. Large-eddy simulations of neutrally-stratified atmospheric boundary layer flows through stand-alone wind turbines were performed over homogeneous flat surfaces with ...
Yu-Ting Wu, Fernando Porté-Agel
doaj   +1 more source

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