摘要
测试来流不变、帆翼不变方式下帆船帆翼数值模拟结果的差异性。结果显示:不同攻角下帆翼不变方式和来流不变方式得到的阻力系数均与实验值相差不大,但帆翼不变方式得到升力系数与实验值相差很大,来流不变方式得到的升力系数与实验值误差较小。考虑帆船帆翼空气动力性能数值模拟时攻角在0～180°范围内变化的特殊性,在帆翼空气动力性能数值模拟中,采用来流不变方式,模拟不同攻角帆翼流场时,将帆翼转动,重新进行网格划分。
This paper tests the different results of numerical simulation of the aerodynamic performance of the sails under the conditions that inlet force remains immobile and sail wing remains immobile. The results show there is minor difference between the drag coefficient, which is obtained under different attack angle and with the condition of immobile sail wing or inlet force, and experiment results. On the other hand, there is a big difference between lift coefficient and experiment results when sail wing keeps immobile and a minor difference when inlet force keeps immobile. For the attack angle of the sail was from 0 to 180 degrees, keep the inlet direction immobile and turn the sail wing to re-divide the net grid in numerical simulation of aerodynamic performance of sails.
出处
《上海体育学院学报》
CSSCI
北大核心
2012年第6期43-46,共4页
Journal of Shanghai University of Sport
基金
国家自然科学基金资助项目(51009113)
国家科技支撑计划资助项目(2012BAK23B05)
国家体育总局奥运会科研攻关项目(2011A025、09B030)
湖北省教育厅科学技术研究资助项目(Q200933002)
关键词
帆船
帆翼
来流
攻角
升力
阻力
sailing
sail wing
inlet flow
attack angle
lift force
drag force
