Onset of sediment transport in mono- and bidisperse beds under turbulent shear flow
Sign Up to like & getrecommendations! Published in 2018 at "Computational Particle Mechanics"
DOI: 10.1007/s40571-017-0163-6
Abstract: In this paper, we present a study on the onset of sediment motion of particles under turbulent shear flow. We use a fully resolved coupled lattice Boltzmann–discrete element solver to study the behavior of monodisperse… read more here.
Keywords: shear flow; turbulent shear; bidisperse beds; onset sediment ... See more keywords
Interfacial instability of sand patterns induced by turbulent shear flow
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DOI: 10.1016/j.ijsrc.2020.12.005
Abstract: Abstract When a turbulent shear flow above a plane sand surface entrains sand grains, it generates a variety of sand patterns. Fluvial sand forms two major interfacial patterns: meso-scale dunes and antidunes, and large-scale bars.… read more here.
Keywords: sand; shear flow; sand patterns; interfacial instability ... See more keywords
Internal regulation in compressible turbulent shear layers
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DOI: 10.1017/jfm.2020.925
Abstract: Abstract High-resolution simulations of temporally evolving mixing layers, for convective Mach numbers ranging from $M_c=0.2$ to $M_c=2.0$ with density ratios $s=1$ and $s=7$, are analysed to characterize compressibility effects on the structure and evolution of… read more here.
Keywords: shear layers; turbulent shear; internal regulation; regulation compressible ... See more keywords
Self-sustaining processes at all scales in wall-bounded turbulent shear flows
Sign Up to like & getrecommendations! Published in 2017 at "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences"
DOI: 10.1098/rsta.2016.0088
Abstract: We collect and discuss the results of our recent studies which show evidence of the existence of a whole family of self-sustaining motions in wall-bounded turbulent shear flows with scales ranging from those of buffer-layer… read more here.
Keywords: bounded turbulent; shear flows; turbulent shear; wall bounded ... See more keywords
Fractally Fourier decimated homogeneous turbulent shear flow in noninteger dimensions.
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DOI: 10.1103/physreve.95.023115
Abstract: Time evolution of the fully resolved incompressible homogeneous turbulent shear flow in noninteger Fourier dimensions is numerically investigated. The Fourier dimension of the flow field is extended from the integer value 3 to the noninteger… read more here.
Keywords: homogeneous turbulent; energy; fourier dimension; turbulent shear ... See more keywords
Spectral Broadening of Tonal Sound Propagating Through an Axisymmetric Turbulent Shear Layer
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DOI: 10.2514/1.j058000
Abstract: In aeroacoustics, spectral broadening refers to the scattering of tonal sound fields by turbulent shear layers, whereby the interaction of the sound with turbulent flow results in power lost from t... read more here.
Keywords: spectral broadening; tonal sound; turbulent shear; sound propagating ... See more keywords