摘要
为对概念设计战略大飞机且加装预警雷达天线的气动特性进行对比,采用CATIA软件,设计一种战略大飞机的3D几何模型。基于计算流体力学(computational fluid dynamics,CFD)技术,空气流场的湍流模型采用标准的k-ε方程,流体力学控制理论则采用3维N-S方程。经Fluent软件数值模拟,得出战略大飞机的压力系数云图、速度等值面图和升阻特性,并计算在平飞时飞机的质量和需用推力。结果表明,该研究能对大飞机总体设计提供参考依据和技术支撑。
In order to compare the aerodynamic characteristics of strategic large aircraft and early warning airplane with radar antenna,a 3D model of strategic large aircraft is designed by CATIA software.Based on computational fluid dynamics(CFD)technology,standard k-ε equation is applied to turbulence model of the air flow field,while fluid dynamics control theory adopts the 3D N-S equation.Then numerical simulation of the model is conducted in Fluent software,and the pressure coefficient diagram,velocity contour map and lift-resistance characteristics of the strategic large aircraft are obtained.The weight of the model and required thrust during horizontal flight are also calculated.The results show that the research can provide reference and technical support for the overall design of large aircraft.
作者
岳奎志
程亮亮
董超
郁大照
Yue Kuizhi;Cheng Liangliang;Dong Chao;Yu Dazhao(No.1 School,Navy Aviation University,Yantai 264001,China;No.2 School,Navy Aviation University,Yantai 264001,China)
出处
《兵工自动化》
2021年第3期43-47,53,共6页
Ordnance Industry Automation
基金
国家自然科学基金资助项目(51375490)。
关键词
概念设计
大飞机
计算流体力学
数值模拟
气动特性
conceptual design
large aircraft
CFD
numerical simulation
aerodynamic characteristics
