Results 21 to 30 of about 95,386 (312)

Direct numerical simulation of matrix diffusion across fracture/matrix interface

open access: yesWater Science and Engineering, 2013
Accurate descriptions of matrix diffusion across the fracture/matrix interface are critical to assessing contaminant migration in fractured media. The classical transfer probability method is only applicable for relatively large diffusion coefficients ...
Yong Zhang   +3 more
doaj   +1 more source

Direct numerical simulations of aeolian sand ripples [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
Significance Wind ripples decorate the flanks of dunes in amazingly regular patterns, on both Earth and Mars. Their emergence at a wavelength much larger than the grain size is currently unexplained. We report direct numerical simulations of grains interacting with a wind flow that are, for the first time to our knowledge, able to reproduce ...
Durán, Orencio   +2 more
openaire   +4 more sources

Direct numerical simulation of turbulent flow above zigzag riblets

open access: yesAIP Advances, 2018
We investigate the drag-reducing performance of a zigzag riblet inspired by the “Miura fold” and its influence on the streamwise vortices above a wall-bounded turbulent flow through direct numerical simulations of channel flows. The employed channel wall
Kie Okabayashi   +3 more
doaj   +1 more source

Optimal Taylor–Couette flow: direct numerical simulations [PDF]

open access: yesJournal of Fluid Mechanics, 2013
AbstractWe numerically simulate turbulent Taylor–Couette flow for independently rotating inner and outer cylinders, focusing on the analogy with turbulent Rayleigh–Bénard flow. Reynolds numbers of $R{e}_{i} = 8\times 1{0}^{3} $ and $R{e}_{o} = \pm 4\times 1{0}^{3} $ of the inner and outer cylinders, respectively, are reached, corresponding to Taylor ...
Ostilla, R   +4 more
openaire   +4 more sources

Direct Numerical Simulation and Visualization of Subcooled Pool Boiling

open access: yesScience and Technology of Nuclear Installations, 2014
A direct numerical simulation of the boiling phenomena is one of the promising approaches in order to clarify their heat transfer characteristics and discuss the mechanism.
Tomoaki Kunugi, Yasuo Ose
doaj   +1 more source

Direct numerical simulation of supercritical annular electroconvection [PDF]

open access: yesPhysical Review E, 2007
We use direct numerical simulation to study electrically driven convection in an annular thin film. The simulation models a laboratory experiment that consists of a weakly conducting, submicron thick liquid crystal film suspended between two concentric electrodes. The film is driven to convect by imposing a sufficiently large voltage across it.
Tsai, Peichun Amy   +3 more
openaire   +2 more sources

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   +4 more sources

DNS and LES for Simulating Stratocumulus: Better Together

open access: yesJournal of Advances in Modeling Earth Systems, 2018
We argue that combining direct numerical simulation (DNS) with large‐eddy simulation (LES) and field studies could accelerate current lines of stratocumulus research.
J. P. Mellado   +3 more
doaj   +1 more source

Direct Numerical Simulation of Particles in Spatially Varying Electric Fields †

open access: yesFluids, 2018
A numerical scheme is developed to simulate the motion of dielectric particles in the uniform and nonuniform electric fields of microfluidic devices.
Edison Amah   +2 more
doaj   +1 more source

Direct numerical simulation of solidification with effects of density difference

open access: yesVietnam Journal of Mechanics, 2016
In this paper, direct numerical simulations are presented for solidification with the effects of density difference between the solid and liquid phases. A front-tracking method is used. The solidification front, i.e.
Vu Van Truong
doaj   +1 more source

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