Results 81 to 90 of about 60,257 (227)

Simulation of fully resolved finite-size particles in a turbulent flow [PDF]

open access: yes, 2013
In this study we are interested on the statistics of finite sized particles. A sustained homogeneous isotropic turbulence with particles is numerically simulated in order to obtain those ...
Brandle de Motta, Jorge   +3 more
core  

Homogeneity and isotropy in a laboratory turbulent flow

open access: yes, 2013
We present a new design for a stirred tank that is forced by two parallel planar arrays of randomly actuated synthetic jets. This arrangement creates turbulence at high Reynolds number with low mean flow.
Bellani, Gabriele, Variano, Evan A.
core   +1 more source

Woven Eutectic Lamellar Structures Lead to Ultrahigh Strength and Energy Absorption Capacity in Additively Manufactured Lattice Structures

open access: yesSmall Structures, Volume 6, Issue 5, May 2025.
Herein, AlCoCrFeNi2.1 is selected to produce lattice structures by selective laser melting. The as‐printed lattice structures consist of numerous colonies of nanosized eutectic lamellar structures which are bent and interwind with each other to form a woven microstructure. The unique microstructure leads to unprecedented effective metal strength, yield
Zhiyong Ji   +6 more
wiley   +1 more source

Unsteady and Inhomogeneous Turbulent Fluctuations around Isotropic Equilibrium

open access: yesAtmosphere
Extracting statistics for turbulent flows directly from the Navier–Stokes equations poses a formidable challenge, particularly when dealing with unsteady or inhomogeneous flows.
Wouter J. T. Bos
doaj   +1 more source

Generalized self-similar spectrum and the effect of large-scale in decaying homogeneous isotropic turbulence

open access: yesNew Journal of Physics, 2018
In statistically stationary conditions, the turbulent energy spectrum in a high Reynolds number flow exhibits a k ^−5/3 (Kolmogorov) regime, with a faster decay at larger, dissipative wavenumbers.
Ping-Fan Yang, Alain Pumir, Haitao Xu
doaj   +1 more source

Brain Pulsation Imaging Using Non‐Balanced Steady‐State Free Precession With 3D‐EPI Readout

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 3, Page 1606-1618, March 2026.
ABSTRACT Purpose To present a new, fast MR imaging method for visualization and quantification of pulsatile displacement in brain tissue and fluid. Methods The natural phase‐contrast of non‐balanced steady‐state free precession combined with careful tuning of the intrinsic spoiler gradients is harnessed to measure displacement along specific physical ...
Pål Erik Goa   +3 more
wiley   +1 more source

Droplet breakup in homogeneous and isotropic turbulence [PDF]

open access: yes, 2010
This fluid dynamics video shows the breakup of a droplet in a stationary homogeneous and isotropic turbulent flow. We consider droplets with the same density of the transporting fluid.
Biferale, Luca   +3 more
core  

Non‐Negligible Influence of Forcing Mechanisms on Turbulent Mixing at Low Reynolds Numbers: A One‐Dimensional Turbulence Study

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT This study presents a numerical investigation of passive scalar mixing in homogeneous isotropic turbulence (HIT). Different volumetric forcing schemes have been used in the literature, but the side effects are rarely discussed, either because these are assumed irrelevant or because it is too costly to conduct such an analysis with a high ...
Abhishek Joshi   +2 more
wiley   +1 more source

Wave turbulence: a solvable problem applied to the Navier–Stokes equations

open access: yesComptes Rendus. Physique
Wave turbulence and eddy turbulence are the two regimes that we may encounter in nature. The attention of fluid mechanics being mainly focused on incompressible hydrodynamics, it is usually the second regime that is treated in books, whereas waves are ...
Galtier, Sébastien
doaj   +1 more source

The energy decay in self-preserving isotropic turbulence revisited [PDF]

open access: yes
The assumption of self-preservation allows for an analytical determination of the energy decay in isotropic turbulence. Here, the self-preserving isotropic decay problem is analyzed, yielding a more complete picture of self-serving isotropic turbulence ...
Bernard, Peter S., Speziale, Charles G.
core   +1 more source

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