采用雷诺平均法模拟低质量比弹性支撑的刚性圆柱体在均匀来流中的涡激振动问题，是近年来人们研究的热点。本文采用有限体积法结合SST k-ω湍流模型求解时间平均的纳维尔——斯托克斯方程(RANS)，对低质量比弹性支撑的刚性圆柱体在均匀来流中横向振动的三个响应分支（初始分支、上端分支和下端分支）湍流场及其发展变化进行了研究，并与同等雷诺数下固定圆柱体的湍流场进行了对比。结果表明：三个响应分支的流体力系数、壁面压力系数、壁面切应力、流向平均速度、流向速度的脉动、横向速度的脉动、雷诺应力、湍流动能和涡量的分布均与固定圆柱体有明显差异。

Application Reynolds-Averaged Navier-Stokes equation (RANS) to solve vortex induced vibration problem has been a hot topic in recent years. In the present study, SST k-ω turbulence model is adopted to predict transverse vortex induced vibration of elastically supported rigid cylinder with low mass damping in a fluid flow. By comparing turbulence fields and developments of three different response branches and static cylinder with the coequal Reynolds number, some differences are observed. Pressure coefficient on the wall, shear stress on the wall, mean streamwise velocity, streamwise velocity fluctuation, cross-flow velocity fluctuation and Reynolds shear stress of three branches are different from those of static cylinder.