漂浮式垂直轴风力机在风浪载荷作用下动态响应复杂多变，为揭示其气-水动力学响应机制，以单柱式漂浮式垂直轴风力机为研究对象，通过计算流体力学方法并结合重叠网格技术，对其在运行和停机两种工况下的动力学响应特性开展分析。结果表明：漂浮式垂直轴风力机风轮功率系数波动剧烈，但平均功率系数相较于固定式提高28%；在运行工况下，漂浮式垂直轴风力机尾迹速度衰减较快，涡相互作用显著增强，而停机工况下尾迹特征主要表现为由绕流产生的少量速度亏损和涡；水动力学响应特征表明，运行工况下风轮推力有所增大，使其向下游产生更大的纵荡距离以及更大的纵摇平衡角度；受风轮旋转力矩影响，运行工况下平台的艏摇响应幅值显著增加。

Floating Vertical Axis Wind Turbines (VAWTs) exhibit complex dynamic responses under wind-wave loads. To reveal their aero-hydrodynamic response mechanisms, this study focuses on a spar-type floating VAWT. Using computational fluid dynamics (CFD) coupled with overset grid technology, we analyze its dynamic response characteristics under both operational and parked conditions. Results show that: The rotor power coefficient of the floating vertical axis wind turbine (VAWT) exhibits highly fluctuating behavior, while its average power coefficient is observed to be 28% higher than that of the fixed-type counterpart; During operation, the floating VAWT demonstrates accelerated wake velocity decay and significantly enhanced vortex interactions, whereas parked conditions primarily exhibit minor velocity deficits and vorticity induced by flow separation; Hydrodynamic response analysis reveals increased rotor thrust during operation, leading to larger surge displacements and greater pitch equilibrium angles downstream; Due to the influence of rotor torque, the platform's yaw response amplitude significantly increases under operating conditions.

国家重点研发计划资助(2024YFA1012501)，浮式垂直轴风力机风场湍流随机模型及动态失速演化机理研究；国家自然科学基金，漂浮式海上风力机仿生平台减载增稳机理研究（52476212）；