计算力学学报2012，Vol.29Issue(1)：74-80,7.
亚临界雷诺数下圆柱受迫振动的数值研究
Two dimensional numerical simulation of forced oscillating cylinder at sub-critical Reynolds numbers
摘要
Abstract
Based on the Navier-Stokes equations,κ-ω turbulent model, SUPG Finite Element method and Arbitrary Lagragian-Eulerian method, a numerical model is developed in this work to investigate the forced oscillation of circular cylinder in uniform flow. The 2S, 2P and P--S wake modes are simulated successfully in the wake region at Re= 5000. The lift and drag coefficients are in good agreement with the available numerical and experimental data. The variations of fluid forces with the oscillation frequencies of circular cylinder at different non-dimensional amplitudes of 0.3, 0.4 and 0.5 at Re=10000 are also examined. The lock-in region is obtained and agrees well with the experimental data. It shows that the present two-dimensional model is able to predict the characteristics of VIV, but the three-dimensional viscous numerical model is necessary for the accurate numerical simulation.关键词
Navier-Stokes方程/涡激振动/流线迎风有限元/任意拉格朗日-欧拉方法/κ-ω湍流模型Key words
Navier-Stokes equations/vortex-induced vibration~ Arbitrary Lagragian-Eulerian method finite element method/turbulent model分类
数理科学引用本文复制引用
赵静,吕林,董国海,谢彬,滕斌..亚临界雷诺数下圆柱受迫振动的数值研究[J].计算力学学报,2012,29(1):74-80,7.基金项目
国家863项目 （）
南京水利科学研究院港口航道泥沙工程交通行业重点实验室开放基金资助项目. （）
