Unified momentum model for rotor aerodynamics across operating regimes

J Liew, KS Heck, MF Howland - Nature Communications, 2024 - nature.com
Despite substantial growth in wind energy technology in recent decades, aerodynamic
modeling of wind turbines relies on momentum models derived in the late 19th and early …

Vertical structure of conventionally neutral atmospheric boundary layers

L Liu, RJAM Stevens - … of the National Academy of Sciences, 2022 - National Acad Sciences
Conventionally neutral atmospheric boundary layers (ABLs) are frequently encountered in
nature, and their flow dynamics affect the transfer of momentum, heat, and humidity in the …

[HTML][HTML] Effects of atmospheric stability on the performance of a wind turbine located behind a three-dimensional hill

L Liu, RJAM Stevens - Renewable Energy, 2021 - Elsevier
Understanding the effect of thermal stratification on wind turbine wakes in complex terrain is
essential to optimize wind farm design. The effect of a three-dimensional hill on the …

Analytical model coupling Ekman and surface layer structure in atmospheric boundary layer flows

G Narasimhan, DF Gayme, C Meneveau - Boundary-Layer Meteorology, 2024 - Springer
We introduce an analytical model that describes the vertical structure of Ekman boundary
layer flows coupled to the Monin-Obukhov Similarity Theory (MOST) surface layer …

A fast-running physics-based wake model for a semi-infinite wind farm

M Bastankhah, MM Mohammadi, C Lees… - Journal of Fluid …, 2024 - cambridge.org
This paper presents a new generation of fast-running physics-based models to predict the
wake of a semi-infinite wind farm, extending infinitely in the lateral direction but with finite …

Universal wind profile for conventionally neutral atmospheric boundary layers

L Liu, SN Gadde, RJAM Stevens - Physical review letters, 2021 - APS
Conventionally neutral atmospheric boundary layers (CNBLs), which are characterized with
zero surface potential temperature flux and capped by an inversion of potential temperature …

The global properties of nocturnal stable atmospheric boundary layers

Z Shen, L Liu, X Lu, RJAM Stevens - Journal of Fluid Mechanics, 2024 - cambridge.org
Accurate prediction of the global properties of wall-bounded turbulence holds significant
importance for both fundamental research and engineering applications. In atmospheric …

Stable Boundary Layers with Subsidence: Scaling and Similarity of the Steady State

T Bon, RB Cal, J Meyers - Boundary-Layer Meteorology, 2024 - Springer
The stable boundary layer (SBL) subjected to large-scale subsidence is studied through
large-eddy simulations (LESs) with fixed surface temperature and a linear subsidence …

The mean wind and potential temperature flux profiles in convective boundary layers

L Liu, SN Gadde, RJAM Stevens - Journal of the Atmospheric …, 2023 - journals.ametsoc.org
We develop innovative analytical expressions for the mean wind and potential temperature
flux profiles in convective boundary layers (CBLs). CBLs are frequently observed during …

Geostrophic drag law in conventionally neutral atmospheric boundary layer: simplified parametrization and numerical validation

L Liu, X Lu, RJAM Stevens - Boundary-Layer Meteorology, 2024 - Springer
This study investigates the parameterization of the geostrophic drag law (GDL) for
conventionally neutral atmospheric boundary layers (CNBLs). Utilizing large eddy …