Actuator Disc Approach of Wind Turbine Wake Simulation Considering Balance of Turbulence Kinetic Energy

Huilai Ren, Xiaodong Zhang, Shun Kang and Sichao Liang
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Huilai Ren: Key Laboratory of Condition Monitor and Control for Power Plant Equipments, Ministry of Education, North China Electric Power University, Beijing 102206, China
Xiaodong Zhang: Key Laboratory of Condition Monitor and Control for Power Plant Equipments, Ministry of Education, North China Electric Power University, Beijing 102206, China
Shun Kang: Key Laboratory of Condition Monitor and Control for Power Plant Equipments, Ministry of Education, North China Electric Power University, Beijing 102206, China
Sichao Liang: Huaneng Renewables Corporation Limited, Beijing 100036, China

Energies, 2018, vol. 12, issue 1, 1-19

Abstract: The operation of the wind turbines downstream is affected by the wake of the wind turbines upstream. Wind turbine wake flow is investigated by applying the actuator disc (AD) method. The modified k-ε turbulence model is proposed by using both the turbulent kinetic energy source term and the dissipation rate source term to improve the standard k-ε turbulence model for coordinating the generation and the dissipation of the turbulent kinetic energy. The dissipation rate parameter C 4 ε that obeys a parabolic distribution is used, based on theoretical analysis. The force distributed on the AD is also used instead of a constant, as used in the classical AD method. The simulation results were consistent with the measurements that correspond to different kinds of wind turbines and conditions. The nacelle and the inflow turbulence intensity have great influences on accurately simulating the wake, so it is necessary to imitate the rotor along with the nacelle and accurately measure the inflow turbulence intensity.

Keywords: wake; actuator disc; source term; turbulence intensity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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