Scaling and dynamics of turbulence over sparseA canopies
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Abstract
Turbulent flows within and over sparse canopies are investigated using direct
numerical simulations. We focus on the effect of the canopy on the background
turbulence, the part of the flow that remains once the element-induced flow is
filtered out. In channel flows, the distribution of the total stress is linear
with height. Over smooth walls, the total stress is only the `fluid stress'
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1469-7645