Results 231 to 240 of about 6,328 (265)

Modelling of Turbulent Transport in Laser Melt Pools

Volume 1: Fora, Parts A, B, C, and D, 2003
In this paper, we present a modified k-ε model capable of addressing turbulent molten metal-pool convection in the presence of a continuously evolving phase-change interface during a laser melting process. The phase change aspects of the present problem are addressed using a modified enthalpy-porosity technique.
Nilanjan Chakraborty, Suman Chakraborty
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Turbulence Models for Sediment Transport Engineering

2008
In problems of civil engineering interest, sediment transport invariably occurs under turbulent-flow conditions. Traditional discussions (ASCE Manual 54; see also Chapter 2) of turbulence models have, however, been mainly restricted to the problem of determining the vertical distribution of suspended sediment in the simplest case of uniform channel ...
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Algebraic Models for Turbulent Transports in Premixed Flames

Combustion Science and Technology, 2012
The thermal expansion induced by the chemical reactions taking place in a turbulent reactive flow of premixed reactants affects the velocity field so strongly that turbulent transports can be controlled by reaction rather than by turbulence. Moreover, thermal expansion is well-known to cause countergradient turbulent diffusion as well as flame ...
Vincent Robin, Arnaud Mura, Michel Champion   +2 more
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Prediction of turbulent flow in annular ducts with differential transport model of turbulence

Wärme- und Stoffübertragung, 1974
In general, flow in an annulus will be strongly asymmetric because of unequal curvatures and, possibly, dissimilar texture of the two boundaries. As a result, the turbulent flow structure in such geometries possesses a number of features which can not satisfactorily be accounted for with a simple model of turbulence.
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Turbulence Transport Modeling and PSP Observations

2019
The Parker Solar Probe (PSP) has made two orbits of the Sun since its launch in August 2018. The PSP achieved its first orbit perihelion on November 6, 2018, reaching a heliocentric distance of about 0.16 au. Here, we study the evolution of fully developed turbulence associated with the slow solar wind along the PSP trajectory between ~ 0.16 au and ~ 0.
Adhikari, L., Zank, G. P., Zhao, L., Hu, Q., Kasper, J. C., Bale, S. D., Larson, D. E., Korreck, K. E., Case, A. W., Stevens, M. L., Whittlesey, P. L., Livi, R., Klein, K. G., Bonnell, J. W., Dudok de Wit, Thierry, Goetz, K., Harvey, P., Macdowall, R. J., Malaspina, D., Pulupa, M.   +19 more
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Percolation models of turbulent transport and scaling estimates

Chaos, Solitons & Fractals, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Phase Space Transport in the Interaction Between Shocks and Plasma Turbulence

Proceedings of the National Academy of Sciences of the United States of America, 2021
Sergio Servidio, Domenico Trotta, Francesco Valentini   +2 more
exaly  

Reassessment of Modeling Turbulence via Reynolds Averaging: A Review of Second-Moment Transport Strategy

Physics of Fluids, 2021
Brian Launder, Kemal Hanjalic
exaly  

Simple models of turbulent transport

XIVth International Congress on Mathematical Physics, 2006
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Data-Driven Fractional Subgrid-Scale Modeling for Scalar Turbulence: A Nonlocal LES Approach

Journal of Computational Physics, 2021
Ali Akhavan-Safaei, Mohsen Zayernouri, Mehdi Samiee   +2 more
exaly