Simulation Method for 3-D Wind Field over Complex Terrain with Asymmetrical Mountains

Huan Ran Hu; Guan Xin Hong

doi:10.4028/www.scientific.net/AMM.444-445.549

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Simulation Method for 3-D Wind Field over Complex...

Simulation Method for 3-D Wind Field over Complex Terrain with Asymmetrical Mountains

Abstract:

It is important for the research of flight characteristics to master the distribution of wind field and the character of turbulence intensity in a complex-terrain mountain. Based on the potential flow theories in fluid dynamics, a numerical simulation method of complex terrain including asymmetrical and symmetrical mountains has been developed in this paper. In particular, asymmetrical mountains are simulated by the combination of two transformed quarter-semiellipsoids. Furthermore, mountain-induced airflow is calculated based on potential flow theory, which could reflect the characteristic of wind field. As an example, the wind field near Dingling airport in Beijing has been simulated and analyzed by this method. The results demonstrate that this method is suitable and accurate for engineering practice, and also applicable for flight dynamics characteristics analysis of aircrafts.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

549-554

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.549

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Online since:

October 2013

Authors:

Huan Ran Hu, Guan Xin Hong

Keywords:

Asymmetrical Mountain, Complex Terrains, Mountain-Induced Airflow, Potential Flow Theory, Three-Dimensional Wind Field

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References

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