中文摘要：

采用求解雷诺平均纳维尔-斯托克斯方程,比较均匀风和梯度风下无桅杆和圆柱型桅杆的升力系数、阻力系数、力矩系数以及压力中心随攻角变化的差异。为了更加接近实际比赛情况,在数值模拟中采用梯度风进行数值模拟。对于来流风的简化模式研究为下一步的帆翼空气动力性能数值模拟与帆船调帆研究打下了基础。

英文摘要：

When the inlet flow was the uniform and gradient wind, the different coefficient of lift, drag, moment of force andpressure centre of no mast and the cylinder mast in different attack angle was compared by solving Reynolds-Averaged NavierStokes Equations. According to the practice condition, the gradient wind was used when aerodynamic performance of the sails was simulated based on the CFD method. The research would be contributed to the numerical simulation of the aerodynamic performance of the sails and trimming the sails.