【摘要】 应用计算流体力学软件FLUENT模拟了亚临界雷诺数Re=10000下强迫振动圆柱的涡街形成过程,应用k-ω湍流模型进行计算,求出了其在锁定范围内不同振荡频率下的的升力系数和阻力系数。计算结果与实验值进行了比较,计算得到的升力系数和阻力系数相对误差在20%以内,最后分析了可能出现误差的原因。更多还原

【Abstract】 The vortex’s formation of a forced oscillating cylinder is simulated with a CFD software FLUENT by using viscous model k - omega at a subcritical Reynolds number of 10000,then computed the coefficient of lift force and drag force under different frequency in the lock-in region.After comparing with the experiment’s result,we find that the relative error between both the coefficient of lift force and drag force and the experiment’s result is 20% below,and analyze some possible reasons of error.更多还原