摘要
飞行器气动计算为总体设计提供重要依据,目前常用气动计算方法有很多。针对海鹰2号导弹气动外形,采用DATCOM及FLUENT软件分别通过工程估计及数值计算的方法对其弹体气动特性进行研究,通过将计算所得的主要气动参数(升力系数、阻力系数和俯仰力矩系数)与风洞试验结果的对比,从而对不同计算方法的使用精度进行评价。结果显示,两种方法在一定范围内满足工程设计的要求,局部加以一定的工程修正,可以为总体及其他部门提供较为精确的气动力系数,且由于各自的使用特点,可以在设计过程的不同阶段加以应用。
Aerodynamic characteristic calculation provides important gist for the aircraft design. Presently, there are several methods for this task. In this paper, the software DATCOM and FLUENT are used as tools for the engineering estimation and numerical study of missile aerodynamic characteristic, based on the aerodynamic configuration of HY -2. Then the software can get verified through comparing some aerodynamic coefficients（cl、cd,cm） obtained by the software to the wind tunnel experimental data. The results show that both the two softwares can satisfy the needs of engineering design. Adding some engineering correction, they can provide more accurate estimation for missile aerodynamic force coefficients. Besides, they can be used at different phases in the whole design process.
出处
《航空计算技术》
2008年第1期47-51,共5页
Aeronautical Computing Technique
