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CLC number: O368; S157.1

On-line Access: 2012-04-06

Received: 2011-08-20

Revision Accepted: 2011-12-28

Crosschecked: 2012-02-28

Cited: 1

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2012 Vol.13 No.4 P.274-283


A computational fluid dynamics model for wind simulation: model implementation and experimental validation

Author(s):  Zhuo-dong Zhang, Ralf Wieland, Matthias Reiche, Roger Funk, Carsten Hoffmann, Yong Li, Michael Sommer

Affiliation(s):  Institute of Soil Landscape Research, Leibniz-Centre for Agricultural Landscape Research (ZALF), Muencheberg 15374, Germany; more

Corresponding email(s):   zhuodong@gmail.com

Key Words:  Wind model, Computational fluid dynamics (CFD), Wind erosion, Wind tunnel experiments, Spatial analysis and modelling tool (SAMT), Open source

Zhuo-dong Zhang, Ralf Wieland, Matthias Reiche, Roger Funk, Carsten Hoffmann, Yong Li, Michael Sommer. A computational fluid dynamics model for wind simulation: model implementation and experimental validation[J]. Journal of Zhejiang University Science A, 2012, 13(4): 274-283.

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T1 - A computational fluid dynamics model for wind simulation: model implementation and experimental validation
A1 - Zhuo-dong Zhang
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A1 - Michael Sommer
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To provide physically based wind modelling for wind erosion research at regional scale, a 3D computational fluid dynamics (CFD) wind model was developed. The model was programmed in C language based on the Navier-Stokes equations, and it is freely available as open source. Integrated with the spatial analysis and modelling tool (SAMT), the wind model has convenient input preparation and powerful output visualization. To validate the wind model, a series of experiments was conducted in a wind tunnel. A blocking inflow experiment was designed to test the performance of the model on simulation of basic fluid processes. A round obstacle experiment was designed to check if the model could simulate the influences of the obstacle on wind field. Results show that measured and simulated wind fields have high correlations, and the wind model can simulate both the basic processes of the wind and the influences of the obstacle on the wind field. These results show the high reliability of the wind model. A digital elevation model (DEM) of an area (3800 m long and 1700 m wide) in the Xilingele grassland in Inner Mongolia (autonomous region, China) was applied to the model, and a 3D wind field has been successfully generated. The clear implementation of the model and the adequate validation by wind tunnel experiments laid a solid foundation for the prediction and assessment of wind erosion at regional scale.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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