基于LBM-LES的航母风场尾流数值模拟研究  

Numerical simulation of wind field wake of aircraft carrier based on LBM-LES

作　　者：江召兵 王丙 王亮 任智源 JIANG Zhao-bing;WANG Bing;WANG Liang;REN Zhi-yuan(Nanjing Opatiya Information Technology Co.,Ltd.,Nanjing 210000,China;Army Military Transportation Univer-sity,Tianjin 300161,China;College of Civil Engineering,Sanjiang University,Nanjing 210000,China;School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]南京欧帕提亚信息科技有限公司,南京210000 [2]陆军军事交通学院,天津300161 [3]三江学院土木工程学院,南京210000 [4]华中科技大学能源与动力工程学院,武汉430074

出　　处：《船舶力学》2025年第2期232-241,共10页Journal of Ship Mechanics

基　　金：国家自然科学基金资助项目(11572351,51879058)。

摘　　要：采用格子玻尔兹曼和大涡模拟相结合(LBM-LES)的数值方法,针对未简化的航母模型,模拟不同风速和风向角下的风场尾流。通过分析舰载机理想着舰轨迹上风场的分布特征,发现相同风向角、不同风速条件下,无量纲时均风速沿着舰轨迹具有相近的分布规律和大小,垂向分量呈典型的“雄鸡尾”式分布,下沉气流峰值约为来流速度的10%左右;相同来流速度、不同风向角条件下,左舷风时着舰轨迹受尾流影响范围明显大于右舷风时。此外,左舷风时着舰轨迹上的垂直速度以下沉为主,右舷风时既有下沉气流又有上升气流,但以上升气流为主。A numerical method combining Lattice Boltzmann and Large Eddy Simulation(LBM-LES)is used to simulate the wind field of the unsimplified carrier model under different wind speeds and wind angles.By analyzing the distribution characteristics of the wind field on the ideal landing trajectory,it is found that the dimensionless time-averaged wind speed has a similar distribution pattern and magnitude along the trajectory under the same wind angle and different wind speed conditions.The vertical component has a typical"rooster tail"distribution,with the peak of the sinking airflow being about 10%of the incoming velocity.For the same incoming speed and different wind angles,the influence of the wake on the landing trajectory during port wind is significantly larger than that of the starboard wind.In addition,the vertical velocity on the landing trajectory is mainly sinking in port winds and both sinking and rising in starboard winds,but predominantly upwelling.

关 键 词：计算流体动力学 玻尔兹曼方法 航母 风场尾流 着舰轨迹 

分 类 号：U661.1[交通运输工程—船舶及航道工程]