Study on Downburst Wind Field Characteristics under Mountainous Terrain

Hai Tao Shi; Yuan Ze Wu; Sun Yi; Bai Feng Ji

doi:10.4028/www.scientific.net/AMM.580-583.2954

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Numerical Decision of Problems of Structural Mechanics with Nonideal Unilateral Constraints
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Some Recent Developments in Coupling of Finite Element and Boundary Element Methods - Part II: Dynamic Procedures for Determining the Relaxation Parameters for the Mixed Dirichlet-Neumann Domain Decomposition FEM-BEM Coupling Method
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Study on Downburst Wind Field Characteristics...

Study on Downburst Wind Field Characteristics under Mountainous Terrain

Abstract:

Downburst is a strong downdraft thunderstorm in the ground formed after the violent impact and spread along the ground very sudden and destructive winds near the ground short. From an engineering point of view for the structure of wind-resistant design, researching downburst wind field characteristics and ultimately determining a reasonable downburst wind profile is one of the core objectives of the study. Terrain conditions are the major factors of downburst wind field characteristics based on the typical mountain terrain on the wind storm flow condition, this paper established typical 2D slope mountain terrain model, using the method of computational fluid dynamics to calculate the velocity contours and pressure cloud in different locations of the mountain. Finally we get the two-dimensional slope typical mountain terrain wind field distribution.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

2954-2957

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.2954

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Online since:

July 2014

Authors:

Hai Tao Shi, Yuan Ze Wu, Sun Yi, Bai Feng Ji

Keywords:

Computational Fluid Dynamics (CFD), Dimensional Hillside, Downburst, Velocity Pressure Contours

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