Turbulent flows over dense filament canopies
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Abstract
Turbulent flows over dense canopies of rigid filaments of small size are
investigated for different element heights and spacings using DNS. The flow can
be decomposed into the element-coherent, dispersive flow, the
Kelvin--Helmholtz-like rollers typically reported over dense canopies, and the
background, incoherent turbulence. The canopies studied have spacings
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1469-7645