RT journal article
T1 Wake characteristics in high solidity horizontal axis hydrokinetic turbines: a comparative study between experimental techniques and numerical simulations
A1 Machuca Macías, Marianela
A1 Castilho Faria Mendes, Rafael
A1 Pereira, Michael
A1 Dobrev, Ivan
A1 Felamingo de Oliveira, Taygoara
A1 Pinho Brasil Junior, Antonio Cesar
A2 Ingeniería Mecánica y Diseño Industrial
K1 Hydrokinetic turbines
K1 High solidity
K1 Actuator line method
K1 PIV
K1 Hot-wire measurements
K1 CFD
AB Hydrokinetic turbines utilizing renewable energy from water streams, such as tidal or river currents, offer a sustainable solution for electricity generation in remote coastal or fluvial regions. While there has been extensive research on the wake characteristics of low-solidity turbines, studies focusing on high-solidity turbines are limited. This study aims to address this research gap by characterizing the turbulent wake of a high-solidity, four-bladed hydrokinetic turbine using a combination of experimental and numerical approaches. Experimental investigations are conducted in two wind tunnel facilities, employing particle image velocimetry and hot-wire anemometry to measure and identify flow structures in the near-wake region. Additionally, the applicability of the actuator line method for high-solidity turbines is validated, considering the challenges posed by the higher blockage effect associated with such turbines. Numerical simulations are performed using an unsteady Reynolds-averaged Navier–Stokes approach, incorporating a full-geometry model of the rotating rotor and employing the actuator line concept for simplified modeling. The findings from this study provide valuable insights into the wake characteristics of high-solidity hydrokinetic turbines, contributing to the understanding of their performance and environmental implications.
PB Springer
SN 1678-5878
YR 2024
FD 2024
LK http://hdl.handle.net/10498/38322
UL http://hdl.handle.net/10498/38322
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026