Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Hydrokinetic Turbine Simulations using Actuator Line Methodology
Submission Author:
Rafael Castilho Faria Mendes , DF
Co-Authors:
Marianela Machuca Macias, Rafael Castilho Faria Mendes, Antonio Brasil Junior, Taygoara Oliveira
Presenter: Rafael Castilho Faria Mendes
doi://10.26678/ABCM.COBEM2019.COB2019-2172
Abstract
A numerical model combining the actuator line methodology with the URANS simulations techniques (ALM) is used to compute the flow through a hydrokinetic 4-blades turbine ($Re=10^5$), the wake and the efficiency of the machine. The ALM/URANS methodology is compared with the results obtained to the full-geometry URANS simulations to validate the simplified methodology. The results showed that the ALM has a satisfactory approximation, especially for far-wakes zones, which make the ALM an excellent tool for turbines iterations inside farms. A performance analysis also shows that both methodologies can reproduce the same power coefficient curve.
Keywords
Horizontal axis turbine, hydrokinetic turbine, CFD, BEM, Actuator Line Methodology
