Numerical Study of Wind Turbine Wake Modeling Based on a Actuator Surface Model

Huai-yang Zhou, Chang Xu, Xing Xing Han, Wen Zhong Shen, Ming Zhang, Xing Ying Chen

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Abstract

In the Actuator Surface Model (ALM), the turbine blades are represented by porous surfaces of velocity and pressure discontinuities to model the action of lifting surfaces on the flow. The numerical simulation is implemented on FLUENT platform combined with N-S equations. This model is improved on the basis of actuator line model(ALM). By using ASM, the model of turbine can be simplified and the quantity of grids and computing time can be significantly reduced. A linear distribution model and a ASM Grid identification method are presented. This paper compares the ASM with ALM by computing both near and far wake of a Nibe A wind turbine, which combines wake velocity, turbulent intensity and vortex structure. Results show that ASM has better prediction accuracy and verify it's feasibility on numerical simulation of wind turbine wake.
Original languageEnglish
JournalGongcheng Rewuli Xuebao
Volume38
Issue number3
Pages (from-to)535-540
Number of pages6
ISSN0253-231X
Publication statusPublished - 2017

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