Results 21 to 30 of about 25,672 (196)

Particle dispersion processes in two-dimensional turbulence: a comparison with 2-D kinematic simulation. [PDF]

open access: yesNonlinear Processes in Geophysics, 2007
We study numerically the comparison between Lagrangian experiments on turbulent particle dispersion in 2-D turbulent flows performed, on the one hand, on the basis of direct numerical simulations (DNS) and, on the other hand, using kinematic simulations (
R. Castilla   +3 more
doaj  

Riblet Drag Reduction Modeling and Simulation

open access: yesFluids, 2022
One of the most interesting passive drag reduction techniques is based on the use of riblets or streamwise grooved surfaces. Detailed flow features inside the grooves can be numerically detected only by Direct Numerical Simulations (DNS), still ...
Benedetto Mele
doaj   +1 more source

Predicting Drag-Reducing Wall Turbulence of Surfactant Solution by Direct Numerical Simulation

open access: yesJournal of Fluid Science and Technology, 2012
We performed direct numerical simulations (DNS) of turbulent channel flow of surfactant solution to investigate characteristics of modulated wall turbulence and turbulent drag reduction.
Takashi OHTA   +2 more
doaj   +1 more source

Direct numerical simulation of backward-facing step flow at Ret = 395 and expansion ratio 2 [PDF]

open access: yes, 2019
Backward-facing step (BFS) constitutes a canonical configuration to study wallbounded flows subject to massive expansions produced by abrupt changes in geometry.
Gorobets, Andrei   +3 more
core   +2 more sources

Benchmark on the Dynamics of Liquid Draining Inside a Tank [PDF]

open access: yesE3S Web of Conferences, 2019
Immense information and details observation of flow physics inside a draining tank can be achieved by adopting reliable numerical simulations. Yet the accuracy of numerical results has been always debatable and it is mainly affected by the grid ...
Mohd Sakri Fadhilah   +2 more
doaj   +1 more source

Direct numerical simulation (DNS) investigation of turbulent open channel flow of a Herschel-Bulkley fluid [PDF]

open access: yesProceedings of the International Seminar on Paste and Thickened Tailings, 2011
In this research, the turbulent behaviour of non-Newtonian suspensions in open channel conditions will be examined and investigated. With lack of fundamental understanding about the mechanisms involved about how turbulent flows of non-Newtonian fluid transport suspension particles, direct numerical simulation may come into the research as a useful ...
Raymond Guang   +4 more
openaire   +1 more source

DNS and Combined Laser Diagnostics of Turbulent Combustion

open access: yesJournal of Thermal Science and Technology, 2008
With the developments of computer technologies, three-dimensional direct numerical simulations (DNS) of turbulent combustion have been realized with a detailed or reduced kinetic mechanism.
Mamoru TANAHASHI   +3 more
doaj   +1 more source

Multiphase turbulence mechanisms identification from consistent analysis of direct numerical simulation data

open access: yesNuclear Engineering and Technology, 2017
Direct Numerical Simulation (DNS) serves as an irreplaceable tool to probe the complexities of multiphase flow and identify turbulent mechanisms that elude conventional experimental measurement techniques.
Ben Magolan   +5 more
doaj   +1 more source

Differential Diffusion Effects in Numerical Simulations on Smoke Toxicity Evaluation

open access: yesMATEC Web of Conferences, 2016
With the increasing frequency of fire caused by construction materials, smoke toxicity evaluation plays a key role in related fields. Numerical simulation has become a popular method to predict the toxicity of smoke. A computational study of differential
Pan Longwei   +4 more
doaj   +1 more source

Transition stages of Rayleigh–Taylor instability between miscible fluids [PDF]

open access: yes, 2001
Direct numerical simulations (DNS) are presented of three-dimensional, Rayleigh–Taylor instability (RTI) between two incompressible, miscible fluids, with a 3:1 density ratio.
Cook, Andrew W., Dimotakis, Paul E.
core   +5 more sources

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