Double Multiple Streamtube Model and Numerical Analysis of Vertical Axis Wind Turbine
Habtamu Beri, Yingxue Yao
DOI: 10.4236/epe.2011.33033   PDF    HTML     20,632 Downloads   40,203 Views   Citations


The present paper contributes to the modeling of unsteady flow analysis of vertical axis wind turbine (VAWT). Double multiple streamtube (DSMT) model was applied for the performance prediction of straight bladed fixed pitch VAWT using NACA0018 airfoil at low wind speed. A moving mesh technique was used to investigate two-dimensional unsteady flow around the same VAWT model with NACA0018 airfoil modified to be flexible at 150 from the main blade axis of the turbine at the trailing edge located about 70 % of the blade chord length using fluent solving Reynolds average Navier-strokes equation. The results obtained from DMST model and the simulation results were then compared. The result shows that the CFD simulation with airfoil modified has shown better performance at low tip speed ratios for the modeled turbine.

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H. Beri and Y. Yao, "Double Multiple Streamtube Model and Numerical Analysis of Vertical Axis Wind Turbine," Energy and Power Engineering, Vol. 3 No. 3, 2011, pp. 262-270. doi: 10.4236/epe.2011.33033.

Conflicts of Interest

The authors declare no conflicts of interest.


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