Results 11 to 20 of about 817,469 (302)

Direct numerical simulation of turbulent Taylor–Couette flow [PDF]

open access: yesEuropean Journal of Mechanics - B/Fluids, 2008
To appear in European Journal of Mechanics B ...
PIRRO', DAVIDE, QUADRIO, MAURIZIO
openaire   +5 more sources

Direct Numerical Simulation of Water Droplets in Turbulent Flow

open access: yesFluids, 2020
Details on the fall speeds of raindrops are essential in both applications and natural events, such as rain-rate retrieval and soil erosion. Here, we examine the influence of turbulence on the terminal velocity of two water drops of different sizes.
Weibo Ren   +2 more
doaj   +1 more source

Direct Numerical Simulation of Active-Controlled Impinging Jets

open access: yesJournal of Fluid Science and Technology, 2009
In order to improve the heat transfer on the wall, impinging jets are used in various industrial applications, and have been investigated experimentally and numerically so far.
Koichi TSUJIMOTO   +3 more
doaj   +1 more source

Direct numerical simulation of turbulence over two-dimensional waves

open access: yesAIP Advances, 2020
Knowledge of turbulent flows over non-flat surfaces is of major practical interest in diverse applications. Significant work continues to be reported in the roughness regime at high Reynolds numbers where the cumulative effect of surface undulations on ...
Balaji Jayaraman, Saadbin Khan
doaj   +1 more source

Direct numerical simulation of multiphase flows with unstable interfaces [PDF]

open access: yes, 2016
Published under licence in Journal of Physics: Conference Series by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.
Antepara Zambrano, Óscar   +3 more
core   +2 more sources

Direct numerical simulation of dispersed particles in a compressible fluid [PDF]

open access: yes, 2012
We present a direct numerical simulation method for investigating the dynamics of dispersed particles in a compressible solvent fluid. The validity of the simulation is examined by calculating the velocity relaxation of an impulsively forced spherical ...
G. Erlebacher   +3 more
core   +2 more sources

Direct numerical simulation for modification of sinusoidal riblets

open access: yesJournal of Fluid Science and Technology, 2016
This paper proposes a new riblet configuration. A traditional sinusoidal riblet was modified with the aim of reducing pressure drag. The height of the side wall in the newly configured riblet is lowered toward the node of the sinusoidal curve to reduce ...
Kie OKABAYASHI
doaj   +1 more source

Direct simulation of liquid-gas-solid flow with a free surface lattice Boltzmann method [PDF]

open access: yes, 2017
Direct numerical simulation of liquid-gas-solid flows is uncommon due to the considerable computational cost. As the grid spacing is determined by the smallest involved length scale, large grid sizes become necessary -- in particular if the bubble ...
Bogner, Simon   +2 more
core   +7 more sources

Turbulent diffusion: Direct numerical simulation [PDF]

open access: yesPAMM, 2009
AbstractDirect numerical simulations (DNS) of a vibrating grid turbulence at two different Reynolds numbers (based on an amplitude and frequency of the grid) Re = 500, 1000 are presented. The evolution of a turbulent/non‐turbulent interface was detected and compared to the theoretical results obtained in the paper [1] using Lie group analysis of the ...
George Khujadze, Martin Oberlack
openaire   +1 more source

Direct Numerical Simulation and Visualization of Biswirling Jets

open access: yesAdvances in Mechanical Engineering, 2014
Two parallel swirling/rotating jets with a distance between them are termed biswirling jets here, which have important and complicated vortex structures different from the single swirling jet due to the negligible vortex-vortex interactions.
Jie Yan   +3 more
doaj   +1 more source

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