CFD simulation of a horizontal axis hydrokinetic turbine

This study presents three-dimensional full transient numerical simulations of a horizontal axis hydrokinetic turbine, HAHT with particular emphasis on the analysis of its hydrodynamic characteristics. Hydrokinetic turbine performance is studied using a time-accurate Reynolds-averaged NavierStokes (RANS) commercial solver. A physical transient rotorstator model with a sliding mesh technique is used to capture changes in flow field at a particular time step. A shear stress transport (SST) turbulence model has been employed to model the turbulent features of the flow. The studied rotor has three blades, based on NACA4412 airfoil. Two operation conditions have been considered: shaft parallel to the incoming flow (SP configuration) and shaft inclined an angle  around 30o regarding the main stream (SI configuration). As a result, the decrement of the hydrodynamic performance of the turbine with the inclined axis is quantitatively evaluated regarding that of the parallel axis. Moreover, a preliminary study of the vorticity dynamics in the wake of the inclined rotor is performed

• Autores: López Castrillón, Yuri Ulianov; Laín Beatove, Santiago; Contreras, L. T.
• Tipo de recurso: http://purl.org/coar/resource_type/c_c94f
• Fecha de publicación: 2017
• Institución: Universidad Autónoma de Occidente
• Repositorio: RED: Repositorio Educativo Digital UAO
• Idioma: eng
• OAI Identifier: oai:red.uao.edu.co:10614/11172
• Acceso en línea: http://hdl.handle.net/10614/11172; http://www.icrepq.com/icrepq17/376-17-contreras.pdf; https://doi.org/10.24084/repqj15.376
• Palabra clave: CFD simulation; Transient analysis; Inclined axis hydrokinetic turbine; Turbulence model; Wind power; Energy efficiency; Energía eólica; Rendimiento energético; Turbogenerators; Turbines; Turbinas; Turbogeneradores
• Rights: openAccess
• License: Derechos Reservados - Universidad Autónoma de Occidente