双尾撑无人机气动数值计算  

Aerodynamic Numerical Calculation of Twin-tailboom UAV

作　　者：薛松海[1] 李琦[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230013

出　　处：《西安航空技术高等专科学校学报》2012年第3期38-41,共4页Journal of Xi'an Aerotechnical College

摘　　要：使用CFD计算流体力学软件对双尾撑无人机进行气动力数值计算,得到小迎角范围内的气动特性参数以及双尾撑无人机表面的压力、密度和来流速度分布情况。运用飞机工程经验计算方法对该无人机进行气动力计算,同时与数值计算结果进行比较分析,结果表明,数值计算方法能够合理的模拟低速流场流动,对无人机的气动布局分析具有重要作用,为下一步无人机的气动布局优化提供了有效的理论基础和参考。Numerical simulation of a twin-tailboom unmanned aerial vehicle（UAV） is carried out by computational fluid dynamics（CFD） software,and the aerodynamic characteristics parameter with a small angle of attack as well as the distribution of pressure,streamline,and velocity on the surface of UAV are obtained.Empirical estimation is also conducted for the aerodynamic estimation of UAV,and the results of the two methods are compared with each other.The result shows that CFD has a satisfactory accuracy in the small scale,low velocity flow simulation,and it plays an important role in the aerodynamic configuration analysis of the UAV.The simulation results can provide a theoretical reference to the further aerodynamic configuration optimization of UAV.

关 键 词：数值计算 工程计算 双尾撑 气动特性 

分 类 号：V221[航空宇航科学与技术—飞行器设计]