Results 61 to 70 of about 60,483 (231)

Identification of Local Isotropic Turbulence Conditions in Various Bubble Columns Based on Several Reliable Parameters

open access: yesFluids, 2023
Bubble columns (BCs) are widely used in the chemical industry. In many industrial applications, these important gas-liquid contactors operate in a churn-turbulent flow regime.
Stoyan Nedeltchev
doaj   +1 more source

Large eddy simulation of two-dimensional isotropic turbulence [PDF]

open access: yes, 1996
Large eddy simulation (LES) of forced, homogeneous, isotropic, two-dimensional (2D) turbulence in the energy transfer subrange is the subject of this paper.
A. Chekhlov   +30 more
core   +2 more sources

Spinodal Decomposition in Homogeneous and Isotropic Turbulence [PDF]

open access: yesPhysical Review Letters, 2014
We study the competition between domain coarsening in a symmetric binary mixtures below the critical temperature and turbulent fluctuations. We find that the coarsening process is arrested in presence of turbulence. The physics of the process shares remarkable similarities with the behaviour of diluted turbulent emulsions and the arrest length scale ...
Perlekar Prasad   +4 more
openaire   +5 more sources

Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Liquid hydrogen, a zero‐carbon and high–energy‐density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship‐induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo‐fluid processes governing boil‐off and
Yan Deng   +5 more
wiley   +1 more source

On Modelling Wind-Farm Wake Turbulence Autospectra and Coherence from a Database

open access: yesEnergies, 2018
This study addresses the feasibility of modeling wind-farm wake-turbulence autospectra and coherences from a database: flow velocity points from experimental and computational fluid dynamics (CFD) investigations. Specifically, it first applies an earlier-
Kyle A. Schau   +2 more
doaj   +1 more source

Probability Density Functions in Homogeneous and Isotropic Magneto-Hydrodynamic Turbulence

open access: yesAtmosphere, 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

Anisotropic Spectra of Acoustic Turbulence

open access: yes, 1999
We found universal anizopropic spectra of acoustic turbulence with the linear dispersion law \bbox{$\omega (k) =ck$} within the framework of generalized kinetic equation which takes into account the finite time of three-wave interactions.
L'vov, V. S, L'vov, Yu. V., Pomyalov, A.
core   +1 more source

Chaos and Predictability of Homogeneous-Isotropic Turbulence [PDF]

open access: yesPhysical Review Letters, 2017
We study the chaoticity and the predictability of a turbulent flow on the basis of high-resolution direct numerical simulations at different Reynolds numbers. We find that the Lyapunov exponent of turbulence, which measures the exponential separation of two initially close solution of the Navier-Stokes equations, grows with the Reynolds number of the ...
BOFFETTA, Guido, Musacchio, S.
openaire   +5 more sources

Radial capacity and hemodynamics evaluation in vitro and implantable feasibility validation in vivo of thinner bioresorbable polymer vascular stents

open access: yesBMEMat, EarlyView.
A series of in vitro experiments, numerical simulations and in vivo experiments were conducted to jointly evaluate the effects of different thicknesses of bioabsorbable polymer vascular stents on their radial capacity, hemodynamics and in vivo outcomes.
Chong Chen   +9 more
wiley   +1 more source

On optical imaging through aircraft turbulent boundary layers [PDF]

open access: yes, 1980
Optical resolution quality as affected by aircraft turbulent boundary layers is analyzed. Wind-tunnel data was analyzed to obtained the variation of boundary layer turbulence scale length and mass density rms fluctuations with Mach number.
Sutton, G. W.
core   +1 more source

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