Development of a Fast Fluid-Structure Coupling Technique for Wind Turbine Computations

• 作者: Matias Sessarego Néstor Ramos-García Wen Zhong Shen
• 来源期刊: 电力能源(英文)
• 学科: 数学
• 关键词: Fluid-Structure-Interaction Wind-Turbine Aero-Elasticity
• 年，卷（期）: 2015,（7）
• 页码范围: 1-6
• 页数: 6页
• 分类号: O1

摘要

Fluid-structure interaction simulations are routinely used in the wind energy industry to evaluate the aerodynamic and structural dynamic performance of wind turbines. Most aero-elastic codes in modern times implement a blade element momentum technique to model the rotor aerodynamics and a modal, multi-body, or finite-element approach to model the turbine structural dynamics. The present paper describes a novel fluid-structure coupling technique which combines a three- dimensional viscous-inviscid solver for horizontal-axis wind-turbine aerodynamics, called MIRAS, and the structural dynamics model used in the aero-elastic code FLEX5. The new code, MIRAS- FLEX, in general shows good agreement with the standard aero-elastic codes FLEX5 and FAST for various test cases. The structural model in MIRAS-FLEX acts to reduce the aerodynamic load computed by MIRAS, particularly near the tip and at high wind speeds.