The method of Computational Fluid Dynamics(CFD) is adopted in this paper simulate the wind field characteristics around a bridge configuration. By using the CFD method, it is available to get not only the distribution of sir pressure, velocity and eddy, but also the aerostatic force coefficients of the box girders. In this paper, several CFD meshing approaches are tried and, by the comparison of the numerical results with those of wind tunnel tests, the most reasonable meshing approach is selected out. Taking one long-span bridge as example, the aerostatic coefficients of the box girder is analyzed by CFD method including total 11 wind attack angles from 5 to +5. The comparison of the numerical simulation results and wind tunnel tests is presented , as well as the pressure profiles and the air velocity profiles. Numerical simulation indicates that the application of CFD technique in bridge aerostatic analysis is feasible and reliable.
Liu Yue;CHEN Zheng-qing;ZHANG ZhiTian.
CFD Numerical Simulation of Aerostatic Coefficients of Box girder[J]. Journal of Vibration and Shock, 2010, 29(1): 133-137
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