Analysis of Wind Flow around the Bridge Cable

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Golbiowska, Irena^1 ; Dutkiewicz, Maciej^1

Faculty of Civil, Architecture and Environmental Engineering, Department of Building Construction, University of Science and Technology in Bydgoszcz, Al. Prof. S. Kaliskiego 7, Bydgoszcz

85-796, Poland^1

关键词: Aerodynamic force coefficients;    Distribution of velocity;    Fatigue stress;    Reynolds averaged navier-stokes models;    Section model;    Water drop;    Wind flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/3/032066/pdf
DOI  :  10.1088/1757-899X/245/3/032066

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Paper concerns the wind flow around the bridge cable for Reynolds number Re=1,4x105. The purpose of the paper is to describe aerodynamic force coefficients of drag and lift and their frequencies, distribution of velocity of flow near the two-dimensional circle and ellipse cylinders that can model the bridge cables. In the analysed case, the RNG k -method belonging to the Reynolds-Averaged Navier-Stokes models was used. The numerical simulations are performed for different aspect ratio, as the shape of cross section of bridges' cable is significant. The ellipse section models the shape with ice on the cable. Especially ice and water drops on cables make the unstable of response that cause the fatigue stresses and faster failure of the cables.