Influence of atmospheric conditions on the power production of utility-scale wind turbines in yaw misalignment

MF Howland, CM González, JJP Martínez… - Journal of Renewable …, 2020 - pubs.aip.org
The intentional yaw misalignment of leading, upwind turbines in a wind farm, termed wake
steering, has demonstrated potential as a collective control approach for wind farm power …

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 …

Modelling the induction, thrust and power of a yaw-misaligned actuator disk

KS Heck, HM Johlas, MF Howland - Journal of Fluid Mechanics, 2023 - cambridge.org
Collective wind farm flow control, where wind turbines are operated in an individually
suboptimal strategy to benefit the aggregate farm, has demonstrated potential to reduce …

Influence of atmospheric stability on wind-turbine wakes with a certain hub-height turbulence intensity

B Du, M Ge, C Zeng, G Cui, Y Liu - Physics of Fluids, 2021 - pubs.aip.org
Atmospheric stability can significantly influence the spreading of wind-turbine wakes. The
previous studies often coupled atmospheric stability with the turbulence intensity and …

[HTML][HTML] Optimal closed-loop wake steering–Part 1: Conventionally neutral atmospheric boundary layer conditions

MF Howland, AS Ghate, SK Lele… - Wind Energy …, 2020 - wes.copernicus.org
Strategies for wake loss mitigation through the use of dynamic closed-loop wake steering
are investigated using large eddy simulations of conventionally neutral atmospheric …

[HTML][HTML] The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows

LA Martínez-Tossas, J King, E Quon… - Wind Energy …, 2021 - wes.copernicus.org
Wind turbine wake models typically require approximations, such as wake superposition
and deflection models, to accurately describe wake physics. However, capturing the …

Optimal closed-loop wake steering, part 2: Diurnal cycle atmospheric boundary layer conditions

MF Howland, AS Ghate, JB Quesada… - Wind Energy …, 2021 - wes.copernicus.org
The magnitude of wake interactions between individual wind turbines depends on the
atmospheric stability. We investigate strategies for wake loss mitigation through the use of …

Interaction between low-level jets and wind farms in a stable atmospheric boundary layer

SN Gadde, RJAM Stevens - Physical review fluids, 2021 - APS
Low-level jets (LLJs) are the wind maxima in the lower regions of the atmosphere with a
high wind energy potential. Here we use large-eddy simulations to study the effect of LLJ …

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 …

Impact of wind farm wakes on flow structures in and around downstream wind farms

A Stieren, RJAM Stevens - Flow, 2022 - cambridge.org
We performed large-eddy simulations in a neutral atmospheric boundary layer to study the
interaction between two identical wind farms with 72 turbines each. We demonstrate that the …