Results 31 to 40 of about 28,275 (194)
Numerical simulation of flow separation over a backward-facing step with high Reynolds number
Large eddy simulation (LES) explicitly calculates the large-scale vortex field and parameterizes the small-scale vortices. In this study, LES and κ-ε models were developed for a specific geometrical configuration of backward-facing step (BFS).
Fang-fang Wang +2 more
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Thermal radiation in a turbulent natural convection plays an important role in a wide area of engineering and nature. The purposes of this study are to investigate the effects of turbulent fluctuation on radiative heat transfer, and to evaluate radiative
Atsushi SAKURAI +3 more
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Evaluation of Recirculation Time in Bubble Train Flow by Using Direct Numerical Simulation [PDF]
In this research, hydrodynamics of teh Bubble Train Flows (BTF) in circular capillaries TEMPhas been investigated by Direct Numerical Simulation (DNS).Teh Volume of Fluid Based (VOF) interface tracking method and streamwise direction periodic boundary ...
Amin Hassanvand +1 more
doaj
Multi-dimensional direct numerical simulation (DNS) of the Schrödinger equation is needed for design and analysis of quantum nanostructures that offer numerous applications in biology, medicine, materials, electronic/photonic devices, etc. In large-scale
Martin Veresko, Ming-Cheng Cheng
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Low Reynolds number k-? modeling by using the direct numerical simulation (DNS) data
The constant C and the near-wall damping function f in the eddyviscosityrelation of the k-? model are evaluated from direct numerical simulation (DNS) data for developed channel and boundary-layer flow, eachat two Reynolds numbers. Various existing f
Ahmed Abdul-Hussein
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Direct numerical simulation of matrix diffusion across fracture/matrix interface
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
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The Barrel of Ilmenau: A large-scale convection experiment to study dust devil-like flow structures.
We present an experimental facility for the validation of numerical simulations on atmospheric dust devils in a controlled laboratory experiment. Dust devils are atmospheric air vortices with a vertical axis, and are formed by intense solar radiation and
Alice Loesch, Ronald du Puits
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In a postulated severe accident, a molten pool with decay heat can form in the lower head of a reactor pressure vessel, threatening the vessel’s structural integrity.
Boshen Bian +2 more
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Influence of small wavy roughness on flatplate boundary layer natural transition
One of the effective ways to reduce viscous drag around an airfoil is by delaying the boundary layer transition. In this study, we analyzed the influence of a small wavy roughness on a two-dimensional, natural boundary layer transition, using direct ...
Hiroki TAMEIKE +2 more
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Direct Numerical Simulation of turbulent Taylor-Couette flow
The direct numerical simulation (DNS) of the Taylor--Couette flow in the fully turbulent regime is described. The numerical method extends the work by Quadrio & Luchini (Eur. J. Mech.
Andereck +34 more
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