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A Fluid–structure Interaction Model for Large Wind Turbines Based on Flexible Multibody Dynamics and Actuator Line Method by Jun Leng; Zhiteng Gao; Michael C.H. Wu; Tao Guo; Ye Li is a Engineering article available to read on EtoBox.

What is A Fluid–structure Interaction Model for Large Wind Turbines Based on Flexible Multibody Dynamics and Actuator Line Method about?

With higher demand of affordable electricity and rapid development of wind turbine technology, scale of wind turbines has been upsizing. As a consequence, blades grow longer and slender. Large geometrically nonlinear deformation and vibration of the blades lead to more challenges in the structural design. In the aerodynamic analysis, traditional blade element momentum theory cannot predict the complicated behavior of these modern blades while fully resolved Navier–Stokes equation methods cost much time modeling and refinement. To overcome these challenges, this paper proposes a new numerical method to analyze turbine aeroelastic performance and fluid–structure interaction based on flexible multibody dynamics and large eddy simulation with anisotropic actuator line method. By comparing the results with various existing numerical methods, we show that the newly proposed method can effectively predict the performance of the wind turbine, such as deformation and power output. We find that blade flexibility poses noticeable impact on the performance of large scale turbines in normal working conditions. The location of nascent vortex is postponed by blade deflection. The max difference b

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Author

Jun Leng; Zhiteng Gao; Michael C.H. Wu; Tao Guo; Ye Li

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)