A comparative study of numerical methods for fluid structure interaction analysis in long-span bridge design
A comparative study of numerical methods for fluid structure interaction analysis in long-span bridge design
复制标题
大跨桥梁设计中流固耦合数值方法比较研究
DOI：
10.12989/was.2002.5.2_3_4.101
复制
发表时间：
2002
影响因子：
1.6
通讯作者：
A. McRobie
中科院分区：
文献类型：
--
作者：
G. Morgenthal;A. McRobie
用于求解非定常纳维-斯托克斯方程的有限体积和离散涡技术已被用来研究大跨桥面周围的气流。两种方法的实现和校准都与添加到 DVM 求解器的准 3D 扩展一起进行了描述。桥面风工程的应用包括不同迎角的流动模拟、空气动力学导数计算和流固耦合分析。正在介绍这些内容并描述其具体功能。如果在实际设计环境中采用数值方法，不仅要根据其准确性来判断，还要根据通用性、计算成本和易用性等因素来判断。通过分析得出结论，以解决计算机模拟是否可以成为桥面风工程实用设计工具的问题。
Both a Finite Volume and a Discrete Vortex technique to solve the unsteady Navier-Stokes equations have been employed to study the air flow around long-span bridge decks. The implementation and calibration of both methods is described alongside a quasi-3D extension added to the DVM solver. Applications to the wind engineering of bridge decks include flow simulations at different angles of attack, calculation of aerodynamic derivatives and fluid-structure interaction analyses. These are being presented and their specific features described. If a numerical method shall be employed in a practical design environment, it is judged not only by its accuracy but also by factors like versatility, computational cost and ease of use. Conclusions are drawn from the analyses to address the question of whether computer simulations can be practical design tools for the wind engineering of bridge decks.