Scalar mixing in homogeneous isotropic turbulence: A numerical study
, 2021 We investigate the dynamics of turbulent dispersion by means of direct numerical simulations of a passive tracer released in a homogeneous isotropic turbulent flow. We focus on the link between the probability density function (PDF) of the passive scalar
M. Orsi +7 more
semanticscholar +1 more source
Major Reference Works, Page 290-301., 2021 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
John P. Sutter C. Chantler +2 more
wiley +1 more source
Effects of hydrogen addition and turbulence on ignition and meso-scale flames of propane mixtures
Journal of Thermal Science and Technology, 2022 This study has investigated experimentally the effects of hydrogen addition and turbulence on the ignition and the flame-kernel development characteristics in isotropic and homogeneous turbulence for propane mixtures.
Masaya NAKAHARA +4 more
doaj +1 more source
Energy transfer and vortex structures: visualizing the incompressible turbulent energy cascade
New Journal of Physics, 2023 The transfer of kinetic energy from large to small scales is a hallmark of turbulent flows. Yet, a precise mechanistic description of this transfer, which is expected to occur via an energy cascade, is still missing.
Ryan McKeown +4 more
doaj +1 more source
Cloud droplet diffusional growth in homogeneous isotropic turbulence: bin microphysics versus Lagrangian super-droplet simulations [PDF]
Atmospheric Chemistry and Physics, 2021 The increase in the spectral width of an initially monodisperse population of cloud droplets in homogeneous isotropic turbulence is investigated by applying a finite-difference fluid flow model combined with either Eulerian bin microphysics or a ...
W. W. Grabowski, L. Thomas, L. Thomas
doaj +1 more source
Probability Density Functions in Homogeneous and Isotropic Magneto-Hydrodynamic Turbulence
Atmosphere, 2020 We derive a hierarchy of evolution equations for multi-point probability density functions in magneto-hydrodynamic (MHD) turbulence. We discuss the relation to the moment hierarchy in MHD turbulence formulated by Chandrasekhar (S. Chandrasekhar, Proc. R.
Jan Friedrich
doaj +1 more source
Homogeneous isotropic turbulence in four spatial dimensions [PDF]
The Physics of Fluids, 2020 Direct numerical simulation is performed for the forced Navier–Stokes equation in four spatial dimensions. Well equilibrated, long time runs at sufficient resolution were obtained to reliably measure spectral quantities, the velocity derivative skewness,
A. Berera, R. D. Ho, Daniel Clark
semanticscholar +1 more source
On the thixotropic effect of turbulence
Theoretical and Applied Mechanics Letters, 2019 As a follow-up research of the work on the natural viscosity of turbulence of Huang et al. [Journal of Turbulence (2003)], here we investigate the thixotropic effect of a turbulent Newtonian fluid on the basis of the ensemble-averaged Navier–Stokes ...
Yu-Ning Huang
doaj +1 more source
Area of scalar isosurfaces in homogeneous isotropic turbulence as a function of Reynolds and Schmidt numbers [PDF]
Journal of Fluid Mechanics, 2019 A fundamental effect of fluid turbulence is turbulent mixing, which results in the stretching and wrinkling of scalar isosurfaces. Thus, the area of isosurfaces is of interest in understanding turbulence in general, with specific applications in, for ...
K. P. Shete, S. M. de Bruyn Kops
semanticscholar +1 more source
Clustering of vertically constrained passive particles in homogeneous, isotropic turbulence [PDF]
, 2014 We analyze the dynamics of small particles vertically confined, by means of a linear restoring force, to move within a horizontal fluid slab in a three-dimensional (3D) homogeneous isotropic turbulent velocity field. The model that we introduce and study
Biferale, Luca +5 more
core +11 more sources