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
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AIP Advances, 2015 A necessary and sufficient form of two-point velocity characteristic function to embody two-point velocity distribution in turbulence is constructed on the mathematical basis of homogeneity and isotropy.
Iwao Hosokawa
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Droplet size distribution in homogeneous isotropic turbulence [PDF]
, 2011 We study the physics of droplet breakup in a statistically stationary homogeneous and isotropic turbulent flow by means of high resolution numerical investigations based on the multicomponent lattice Boltzmann method.
Federico Toschi +7 more
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Advances in Mechanical Engineering, 2017 Large eddy simulation was performed for forced homogeneous isotropic turbulence with/without polymer additives. Wavelet transform in one dimension and two dimensions were performed to investigate the multi-resolution features of coherent structures and ...
Lu Wang +3 more
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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
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Manifestations of Drag Reduction by Polymer Additives in Decaying, Homogeneous, Isotropic Turbulence [PDF]
, 2006 The existence of drag reduction by polymer additives, well established for wall-bounded turbulent flows, is controversial in homogeneous, isotropic turbulence. To settle this controversy we carry out a high-resolution direct numerical simulation (DNS) of
C. Canuto +5 more
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Study of Colliding Particle-Pair Velocity Correlation in Homogeneous Isotropic Turbulence
Applied Sciences, 2020 This paper deals with the numerical analysis of the particle inertia and volume fraction effects on colliding particle-pair velocity correlation immersed in an unsteady isotropic homogeneous turbulent flow.
Santiago Lain +2 more
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Fluctuation-Dissipation Relations and statistical temperatures in a turbulent von K\'arm\'an flow [PDF]
, 2008 We experimentally characterize the fluctuations of the non-homogeneous non-isotropic turbulence in an axisymmetric von K\'arm\'an flow. We show that these fluctuations satisfy relations analogous to classical Fluctuation-Dissipation Relations (FDRs) in ...
Arnaud Chiffaudel +8 more
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von Kármán-Howarth and Corrsin equations closures through Liouville theorem
Results in Physics, 2020 In this communication, the closure formulas of von Kármán-Howarth and Corrsin equations are obtained through the Liouville theorem and the hypothesis of homogeneous isotropic incompressible turbulence.
Nicola de Divitiis
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Turbulent Eddy Generation for the CFD Analysis of Hydrokinetic Turbines
Journal of Marine Science and Engineering, 2022 This paper presents a novel theoretical and computational methodology for the generation of an onset turbulent field with prescribed properties in the numerical simulation of an arbitrary viscous flow.
Matteo Gregori +2 more
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