Numerical simulation of aerodynamic derivatives and critical wind speed for long-span bridges based on simplified steady wind field

被引:0
作者
辛大波
欧进萍
机构
[1] Dalian University of Technology Dalian 116024 China
[2] Harbin 150090 China Harbin 150090 China
[3] School of Civil Engineering Harbin Institute of Technology
[4] School of Civil Engineering Harbin Institute of Technology
基金
中国国家自然科学基金;
关键词
aerodynamic derivatives; critical flutter wind speed; numerical simulation; wind tunnel test; long-span bridges;
D O I
暂无
中图分类号
U441.3 [];
学科分类号
0814 ; 081406 ;
摘要
Combining the computational fluid dynamics-based numerical simulation with the forced vibration technique for extraction of aerodynamic derivatives, an approach for calculating the aerodynamic derivatives and the critical flutter wind speed for long-span bridges is presented in this paper. The RNG k-ε turbulent model is introduced to establish the governing equations, including the continuity equation and the Navier-Stokes equations, for solving the wind flow field around a two-dimensional bridge section. To illustrate the effectiveness and accuracy of the proposed approach, a simple application to the Hume Bridge in China is provided, and the numerical results show that the aerodynamic derivatives and the critical flutter wind speed obtained agree well with the wind tunnel test results.
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收藏
页码:197 / 203
页数:7
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