Results 211 to 220 of about 5,785 (266)

Deep reinforcement learning control unlocks enhanced heat transfer in turbulent convection. [PDF]

Proc Natl Acad Sci U S A
Zhou Z, Zhu X.
europepmc   +1 more source

Green and Flexible Superhydrophobic Surfaces for Friction and Drag Reduction Using "Pattern Elongated" Nanoimprinting. [PDF]

Langmuir
Sarkiris P, Kaloudis E, Gogolides E, Ellinas K.   +3 more
europepmc   +1 more source

Effects of Deadman State on the Safety of Locally Eroded Blast Furnace Hearth: A Multiphysics Coupling Modeling Study. [PDF]

ACS Omega
Yuan F, Chen L, Zhao L, Wang L, Li Z, Zhong Y.   +5 more
europepmc   +1 more source

Numerical simulation of heat transfer and fluid characteristics in micro-channels with obliquely arranged capsule-shaped ribs and optimization study of structural parameters. [PDF]

PLoS One
Yao J, Li C, Shen Y, Wei Y, Zheng H, Feng H, Shao G, Yang J, Li Y.   +8 more
europepmc   +1 more source

Bed sill effectiveness in reducing flow separation at open channel confluences: an openfoam-VOF 3D CFD study. [PDF]

Sci Rep
Sandilya SS, Das BS, Pandey AK.
europepmc   +1 more source

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Turbulent boundary layers: reality and myth

International Journal of Computing Science and Mathematics, 2007
In this paper, we discuss several recent theoretical approaches to wall-bounded flows such as turbulent boundary layers and pipe flows. Specifically, the power law theories by Barenblatt and George and a higher-order approach proposed by Buschmann and Gad-el-Hak are discussed.
Mohamed Gad-El-Hak, Matthias H Buschmann   +1 more
exaly   +2 more sources

Turbulence-Model Predictions for Turbulent Boundary Layers

AIAA Journal, 1974
A set of turbulence model equations, originally postulated by Saffman, forms the basis of this three-part study of steady turbulent-boundary-layer structure above a flat plate. In one part of the study the turbulence equations are integrated through the viscous sublayer by means of time-marching numerical integration techniques and the constant in the ...
Saffman, P. G., Wilcox, D. C.
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Unsteady Turbulent Boundary Layers and Separation

AIAA Journal, 1975
The time dependent turbulent boundary-layer equations are integrated numerically with a two-layer eddy viscosity model (Cebeci-Smith formulation), for transient or oscillatory outer flows. Comparisons with previous theoretical results indicate that the present method is at least as good as the others.
Telionis, D. P., Tsahalis, D. Th.
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The Development of Turbulent Boundary Layers

Journal of the Aeronautical Sciences, 1956
The structure of several recently measured sets of velocity profiles in quasi-two-dimensional turbulent boundary layers is examined. I t is shown that the inner one-fifth of each profile is well represented, independently of pressure gradient, by the universal logarithmic law that was observed by Ludwieg and Tillmann.
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Turbulence in the Atmospheric Boundary Layer

The Physics of Fluids, 1967
The specific features of atmospheric boundary-layer turbulence are described. The small-scale properties of atmospheric turbulence depend very little on the peculiarities of its large-scale components and obey approximately the laws of locally isotropic turbulence. It is shown that turbulence is locally axisymmetric in respect to the vertical direction
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