Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Turbulent unsteady flow analysis of horizontal axis wind turbine airfoil aerodynamics based on the harmonic balance Reynolds-Averaged Navier-Stokes equations
AU - Campobasso, Sergio
AU - Gigante, Fabio
AU - Drofelnik, Jernej
PY - 2014
Y1 - 2014
N2 - Several horizontal axis wind turbine unsteady flows, such asthat associated with the yawed wind regime, are predominantly periodic. Harmonic balance Reynolds-averaged Navier-Stokes solvers can be used to accurately analyze such flows substantially faster than what their time-domain counterparts can do. The paper presents the mathematical and numerical features of a new turbulent harmonic balance Navier-Stokes solver using Menter’s shear stress transport model for the turbulence closure. The effectiveness of the developed technology is demonstrated by using two-dimensional harmonic balance flow simulations to determine the periodic aerodynamic loads acting on a blade section of a 164 m-diameter wind turbine rotor in yawed wind. Presented results highlight that the turbulent harmonic balance solver can compute the sectional hysteresis force cycles more than 10 times faster than its time-domain counterpart, and with an accuracy comparable to that of the time-domain solver.
AB - Several horizontal axis wind turbine unsteady flows, such asthat associated with the yawed wind regime, are predominantly periodic. Harmonic balance Reynolds-averaged Navier-Stokes solvers can be used to accurately analyze such flows substantially faster than what their time-domain counterparts can do. The paper presents the mathematical and numerical features of a new turbulent harmonic balance Navier-Stokes solver using Menter’s shear stress transport model for the turbulence closure. The effectiveness of the developed technology is demonstrated by using two-dimensional harmonic balance flow simulations to determine the periodic aerodynamic loads acting on a blade section of a 164 m-diameter wind turbine rotor in yawed wind. Presented results highlight that the turbulent harmonic balance solver can compute the sectional hysteresis force cycles more than 10 times faster than its time-domain counterpart, and with an accuracy comparable to that of the time-domain solver.
KW - Aerodynamics
KW - Turbulence
KW - Navier-Stokes equations
KW - Unsteady flow
KW - Horizontal axis wind
KW - Tubines
KW - Airfoils
U2 - 10.1115/GT2014-25559
DO - 10.1115/GT2014-25559
M3 - Conference contribution/Paper
VL - 3B
BT - ASME Turbo Expo 2014: turbine technical conference and exposition
PB - The American Society of Mechanical Engineers
ER -