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A review of turbulent skin-friction drag reduction by near-wall transverse forcing
The quest for reductions in fuel consumption and CO 2 emissions in transport has been a
powerful driving force for scientific research into methods that might underpin drag-reducing …
powerful driving force for scientific research into methods that might underpin drag-reducing …
Wall-modeled large-eddy simulation for complex turbulent flows
Large-eddy simulation (LES) has proven to be a computationally tractable approach to
simulate unsteady turbulent flows. However, prohibitive resolution requirements induced by …
simulate unsteady turbulent flows. However, prohibitive resolution requirements induced by …
Scientific multi-agent reinforcement learning for wall-models of turbulent flows
The predictive capabilities of turbulent flow simulations, critical for aerodynamic design and
weather prediction, hinge on the choice of turbulence models. The abundance of data from …
weather prediction, hinge on the choice of turbulence models. The abundance of data from …
An energy-efficient pathway to turbulent drag reduction
Simulations and experiments at low Reynolds numbers have suggested that skin-friction
drag generated by turbulent fluid flow over a surface can be decreased by oscillatory motion …
drag generated by turbulent fluid flow over a surface can be decreased by oscillatory motion …
Large eddy simulation with modeled wall-stress: recent progress and future directions
The paper provides a brief introduction to the near-wall problem of LES and how it can be
solved through modeling of the near-wall turbulence. The distinctions and key differences …
solved through modeling of the near-wall turbulence. The distinctions and key differences …
Log-layer mismatch and modeling of the fluctuating wall stress in wall-modeled large-eddy simulations
Log-layer mismatch refers to a chronic problem found in wall-modeled large-eddy simulation
(WMLES) or detached-eddy simulation, where the modeled wall-shear stress deviates from …
(WMLES) or detached-eddy simulation, where the modeled wall-shear stress deviates from …
Simulation and validation of a spatially evolving turbulent boundary layer up to Reθ= 8300
Results of a finely resolved large-eddy simulation (LES) of a spatially develo** zero-
pressure-gradient turbulent boundary layer up to a Reynolds number of Re θ= 8300 are …
pressure-gradient turbulent boundary layer up to a Reynolds number of Re θ= 8300 are …
Spectral stochastic estimation of high-Reynolds-number wall-bounded turbulence for a refined inner-outer interaction model
For wall-bounded flows, the model of Marusic et al.[Science 329, 193 (2010) SCIEAS 0036-
8075 10.1126/science. 1188765] allows one to predict the statistics of the streamwise …
8075 10.1126/science. 1188765] allows one to predict the statistics of the streamwise …
Scaling of the streamwise turbulence intensity in the context of inner-outer interactions in wall turbulence
The classical view of wall-bounded turbulence considers a near-wall inner region where all
velocity statistics are universally dependent on distance from the wall when scaled with …
velocity statistics are universally dependent on distance from the wall when scaled with …
Wavelet analysis of wall turbulence to study large-scale modulation of small scales
Wavelet analysis is employed to examine amplitude and frequency modulations in
broadband signals. Of particular interest are the streamwise velocity fluctuations …
broadband signals. Of particular interest are the streamwise velocity fluctuations …