Results 61 to 70 of about 628,643 (214)

Transitional–turbulent spots and turbulent–turbulent spots in boundary layers [PDF]

open access: yesProceedings of the National Academy of Sciences, 2017
Significance Uncovering the constitutive coherent structure in the inner layer of the canonical turbulent boundary layer has remained a central fluid mechanics theme, because it tests our intellectual ability to understand even the simplest external flow.
Jinhie Skarda   +5 more
openaire   +3 more sources

Lectures on turbulence

open access: yesPhysics Reports, 2023
Fluid dynamics turbulence refers to the chaotic and unpredictable dynamics of flows. Despite the fact that the equations governing the motion of fluids are known since more than two centuries, a comprehensive theory of turbulence is still a challenge for the scientific community.
Benzi, Roberto, Toschi, Federico
openaire   +1 more source

Multi-scale analysis of turbulence evolution in the density stratified intracluster medium

open access: yes, 2018
The diffuse hot medium inside clusters of galaxies typically exhibits turbulent motions whose amplitude increases with radius, as revealed by cosmological hydrodynamical simulations. However, its physical origin remains unclear. It could either be due to
Lau, Erwin, Nagai, Daisuke, Shi, Xun
core   +1 more source

Geophysical turbulence data and turbulence theory [PDF]

open access: yesNonlinear Processes in Geophysics, 1996
Abstract. Many vital insights into the nature of turbulence in fluids have originated from experimental data obtained in geophysical flows. Geophysical data have often helped to stimulate the creation of new turbulence theory, while theory has in many cases motivated the experimental efforts.
openaire   +6 more sources

Passing-over leading-edge vortex: The thrust booster in heaving airfoil

open access: yesAIP Advances, 2019
The thrust generated by heaving airfoil in incompressible flow is studied both numerically and theoretically. It is found that the behaviors of leading-edge vortex (LEV) under different airfoil’s transverse velocities have an important influence on the ...
An-Kang Gao   +3 more
doaj   +1 more source

Current state and future trends in boundary layer control on lifting surfaces

open access: yesAdvances in Mechanical Engineering, 2022
Successful flow control may bring numerous benefits, such as flow stabilization, flow reattachment, separation delay, drag reduction, lift increase, aerodynamic performance improvement, energy efficiency increase, shock delay or weakening, noise ...
Jelena Svorcan   +2 more
doaj   +1 more source

Turbulent transport and dynamo in sheared MHD turbulence with a non-uniform magnetic field [PDF]

open access: yes, 2009
We investigate three-dimensional magnetohydrodynamics turbulence in the presence of both a large-scale velocity and non-uniform magnetic field. By assuming a turbulence driven by an external forcing with both helical and non-helical spectra, we investigate the combined effect of these two shears on turbulence intensity and turbulent transport ...
arxiv   +1 more source

Evaluation of Crop to Crop Water Demand Forecasting: Tomatoes and Bell Peppers Grown in a Commercial Greenhouse

open access: yesAgriculture, 2017
Forecasting crop water demand is a critical part of any greenhouse’s day-to-day operations. This study focuses on a region located in Essex County, Ontario Canada where water demand is dominated by commercial greenhouse operations (78% of capacity ...
Dean C. J. Rice   +3 more
doaj   +1 more source

Study of the atmospheric turbulence in free space optical communications [PDF]

open access: yes, 2009
-In this paper the effect of atmospheric turbulence on free space optical (FSO) communications is investigated experimentally by designing a turbulence simulation chamber.
Fan, Z.   +4 more
core   +1 more source

The spatio-temporal spectrum of turbulent flows

open access: yes, 2015
Identification and extraction of vortical structures and of waves in a disorganised flow is a mayor challenge in the study of turbulence. We present a study of the spatio-temporal behavior of turbulent flows in the presence of different restitutive ...
Cobelli, P. J.   +2 more
core   +1 more source

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