Results 11 to 20 of about 373,804 (364)
Secondary Flow in Smooth and Rough Turbulent Circular Pipes: Turbulence Kinetic Energy Budgets [PDF]
Fluids, 2021 Direct Numerical Simulations have been performed for turbulent flow in circular pipes with smooth and corrugated walls. The numerical method, based on second-order finite discretization together with the immersed boundary technique, was validated and ...
Paolo Orlandi, Sergio Pirozzoli
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Estimation of turbulent kinetic energy dissipation [PDF]
Water Resources Research, 2001 The kinetic energy dissipation rate is one of the key intrinsic fluid flow parameters in environmental fluid dynamics. In an indirect method the kinetic energy dissipation rate is estimated from the Batchelor spectrum. Because the Batchelor spectrum has a significant difference between the highest and lowest spectral values, the spectral bias in the ...
A. Ramachandra Rao +2 more
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Data-driven decomposition of the streamwise turbulence kinetic energy in boundary layers. Part 1. Energy spectra [PDF]
Journal of Fluid Mechanics, 2018 In wall-bounded turbulence, a multitude of coexisting turbulence structures form the streamwise velocity energy spectrum from the viscosity- to the inertia-dominated range of scales.
W. Baars, I. Marusic
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Turbulent Kinetic Energy in Bolt Fishway [PDF]
AgriEngineering, 2019 The paper presents an analysis the spatial distribution of turbulent kinetic energy (TKE) for bolt fishways, including the impact of additional spillway slots and fixed channel development. The research was done for two models, each containing a different arrangement of slots.
Marta Puzdrowska, Tomasz Heese
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The Gary Picture of Short-Wavelength Plasma Turbulence—The Legacy of Peter Gary
Frontiers in Physics, 2022 Collisionless plasmas in space often evolve into turbulence by exciting an ensemble of broadband electromagnetic and plasma fluctuations. Such dynamics are observed to operate in various space plasmas such as in the solar corona, the solar wind, as well ...
Y. Narita, T.N. Parashar, J. Wang
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New turbulence modeling for air/water stratified flow
Journal of Ocean Engineering and Science, 2020 The prediction of interfacial turbulence characteristics is one of the still challenging of two-phase stratified flow. The evaluation of some important parameters such as interfacial heat transfer coefficient based on turbulence kinetic energy and ...
M. Ghafari, M.B. Ghofrani
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Atmosphere, 2020 In this work we study different techniques to estimate basic properties of turbulence, that is its characteristic velocity and length scale from low-resolution data.
Marta Wacławczyk +4 more
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As a Matter of Tension: Kinetic Energy Spectra in MHD Turbulence [PDF]
, 2020 While magnetized turbulence is ubiquitous in many astrophysical and terrestrial systems, our understanding of even the simplest physical description of this phenomena, ideal magnetohydrodynamic (MHD) turbulence, remains substantially incomplete.
P. Grete, B. O’Shea, K. Beckwith
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Ion and Electron Acceleration in Fully Kinetic Plasma Turbulence [PDF]
Astrophysical Journal Letters, 2022 Turbulence is often invoked to explain the origin of nonthermal particles in space and astrophysical plasmas. By means of 3D fully kinetic particle-in-cell simulations, we demonstrate that turbulence in low-β plasmas (β is the ratio of plasma pressure to
L. Comisso, L. Sironi
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Mesoscale equipartition of kinetic energy in quantum turbulence [PDF]
EPL (Europhysics Letters), 2011 The turbulence of superfluid helium is investigated numerically at finite temperature. Direct numerical simulations are performed with a "truncated HVBK" model, which combines the continuous description of the Hall-Vinen-Bekeravich-Khalatnikov equations with the additional constraint that this continuous description cannot extend beyond a quantum ...
Salort, Julien +2 more
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