354 citations · 5.2k across the 75 of their papers we have counts for
7 papers · 1 filter
Modeling space-time correlations of velocity fluctuations in wind farms
Laura J. Lukassen, Richard J. A. M. Stevens, Charles Meneveau +1
An analytical model for the streamwise velocity space-time correlations in turbulent flows is derived and applied to the special case of velocity fluctuations in large wind farms.…
Generalized coupled wake boundary layer model: applications and comparisons with field and LES data for two wind-farms
Richard J. A. M. Stevens, Dennice F. Gayme, Charles Meneveau
We describe a generalization of the Coupled Wake Boundary Layer (CWBL) model for wind-farms that can be used to evaluate the performance of wind-farms under arbitrary wind inflow d…
Dependence of optimal wind turbine spacing on wind farm length
Richard J. A. M. Stevens
Recent large eddy simulations have led to improved parameterizations of the effective roughness height of wind farms. This effective roughness height can be used to predict the win…
Effects of turbine spacing on the power output of extended wind-farms
Richard J. A. M. Stevens, Dennice F. Gayme, Charles Meneveau
We present results from large eddy simulations (LES) of extended wind-farms for several turbine configurations with a range of different spanwise and streamwise spacing combination…
AFiD-GPU: a versatile Navier-Stokes Solver for Wall-Bounded Turbulent Flows on GPU Clusters
Xiaojue Zhu, Everett Phillips, Vamsi Spandan +9
The AFiD code, an open source solver for the incompressible Navier-Stokes equations ({\color{blue}\burl{http://www.afid.eu}}), has been ported to GPU clusters to tackle large-scale…
Roughness-facilitated local 1/2 scaling does not imply the onset of the ultimate regime of thermal convection
Xiaojue Zhu, Richard J. A. M. Stevens, Roberto Verzicco +1
In thermal convection, roughness is often used as a means to enhance heat transport, expressed in Nusselt number. Yet there is no consensus on whether the Nusselt vs. Rayleigh numb…
Confined Rayleigh-Bénard, Rotating Rayleigh-Bénard, and Double Diffusive Convection: A unifying view on turbulent transport enhancement through coherent structure manipulation
Kai Leong Chong, Yantao Yang, Shi-Di Huang +5
Many natural and engineering systems are simultaneously subjected to a driving force and a stabilizing force. The interplay between the two forces, especially for highly nonlinear…