Immersed boundary methods (IBMs) are versatile and efficient computational techniques to
solve flow problems in complex geometric configurations that retain the simplicity and …

With the growing number of wind farms over the last few decades and the availability of
large datasets, research in wind-farm flow modeling—one of the key components in …

Computations of channel flow with rough walls comprising staggered arrays of cubes having
various plan area densities are presented and discussed. The cube height h is 12.5% of the …

The effects of several surface parameters on equivalent sand roughness (ks) in fully rough
regime are investigated by means of direct numerical simulation (DNS) of flow in channels …

Large eddy simulations (LES) of the flow past a wind turbine with and without tower and
nacelle have been performed at 2 tip speed ratios (TSR,), λ= 3 and 6, where the latter …

Natural and engineered surfaces are never smooth, but irregular, rough at different scales,
compliant, possibly porous, liquid impregnated or superhydrophobic. The correct numerical …

The wake produced by a model wind turbine is investigated using proper orthogonal
decomposition (POD) of numerical data obtained by large eddy simulations at a diameter …

Direct numerical simulation (DNS) of a spatially develo** turbulent boundary layer (TBL)
over a wall roughened with regularly arrayed cubes was performed to investigate the effects …

Abstract Knowledge of the dynamics of wind turbine wakes and its dependence on the
incoming boundary layer is fundamental to optimize and control the power production of …

Typical engineering rough surfaces show only limited resemblance to the artificially
constructed rough surfaces that have been the basis of most previous fundamental research …