Results 51 to 60 of about 70,297 (251)
Homogeneity and isotropy in a laboratory turbulent flow
, 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
On velocity structure functions and the spherical vortex model for isotropic turbulence [PDF]
, 2001 We investigate a stochastic model for homogeneous, isotropic turbulence based on Hill's spherical vortex. This is an extension of the method of Synge and Lin [Trans. R. Soc. Can.
Aivazis, Keri A., Pullin, D. I.
core +1 more source
AtmosphereHomogeneous isotropic turbulence (HIT) has been a useful theoretical concept for more than fifty years of theory, modelling, and calculations. Some exact results are revisited in incompressible HIT, with special emphasis on the 4/5 Kolmogorov law.
Claude Cambon
doaj +1 more source
Correlation functions in isotropic and anisotropic turbulence: the role of the symmetry group
, 1998 The theory of fully developed turbulence is usually considered in an idealized homogeneous and isotropic state. Real turbulent flows exhibit the effects of anisotropic forcing.
A. N. Kolmogorov +17 more
core +2 more sources
An overview of Millionschikov's quasi-normality hypothesis applied to turbulence
International Journal of Applied Mechanics and Engineering, 2014 In this paper, we examine the zero-fourth cumulant approximation that was applied to fluctuating velocity components of homogeneous and isotropic turbulence by M.D. Millionschikov.
C. Mamaloukas, H.P. Mazumdar
doaj +1 more source
Theoretical aspects of homogenous isotropic turbulence [PDF]
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2004 We review some recent advances on the problem of fully developed turbulence within the mathematical and physical points of view. From the mathematical perspective, we discuss a framework which has been developed for the rigorous treatment of the conventional statistical theory of turbulence and address some of the rigorous results which have been ...
Moriconi, L., Rosa, R.
openaire +3 more sources
Microfluidic Mixing with the Dynamic Control of Magnetic Actuation
Advanced Intelligent Systems, EarlyView.Schematic illustration and flow field visualization of magnetically actuated L‐shaped microrobots displaying cooperative vortex generation for enhanced microscale mixing. The left side shows the electromagnetic actuation setup, which enables programmable control of rotational direction and frequency.
Prashant Kishor Sharma +2 more
wiley +1 more source
Some Early Studies of Isotropic Turbulence: A Review
AtmosphereA re-examination of some early classic turbulence literature, mainly of isotropic turbulence, is given in this selective review. Some early studies, including original concepts and points, are reviewed or highlighted.
John Z. Shi
doaj +1 more source
Secondary Flow near an Undulatory Surface Induced by Wall Blocking Effect
Journal of Fluid Science and Technology, 2007 Secondary mean motions of Prandtl's second kind near an undulatory surface are explained in terms of the turbulent blocking effect and kinematic boundary conditions at the surface, and the order of magnitude is estimated. The isotropic turbulence is
Kouji NAGATA +2 more
doaj +1 more source
On the influence of forced homogeneous-isotropic turbulence on the settling and clustering of finite-size particles [PDF]
Acta Mechanica, 2018 We investigate the motion of heavy particles with a diameter of several multiples of the Kolmogorov length scale in the presence of forced turbulence and gravity, resorting to interface-resolved direct numerical simulation based on an immersed boundary ...
A. Chouippe, M. Uhlmann
semanticscholar +1 more source