Results 81 to 90 of about 60,257 (227)
Simulation of fully resolved finite-size particles in a turbulent flow [PDF]
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
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
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
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
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
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]
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
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
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]
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

