Coceal, Omduth, Thomas, T. Glyn and Belcher, Stephen E.
Spatially-averaged flow statistics within a canopy of large bluff bodies: results from direct numerical simulations
Acta Geophysica, 56, (3), . (doi:10.2478/s11600-008-0025-y).
Full text not available from this repository.
The flow within a canopy of large bluff bodies is highly turbulent and spatially heterogeneous. Results from direct numerical simulations over groups of cubical obstacles are analysed using the double-averaging methodology. The obstacles occupy a significant fraction of the canopy space; this gives rise to substantial dispersive stresses within the canopy. The underlying bluff-body turbulent dynamics is different from typical canopy turbulence, and this is reflected in the double-averaged statistics. The spatially-averaged velocities, stresses and drag force depend significantly upon the layout of the obstacles. An ongoing challenge is to parameterise these spatially-averaged quantities in terms of the obstacle geometry and layout.
Actions (login required)