CAJ | 학술논문

导弹尾焰流场计算为尾焰红外辐射场计算提供基础数据。基于导弹尾焰流场的形成机理研究，根据燃烧理论、流体力学、气体动力学，考虑燃烧室内的燃烧化学反应建立尾焰流场计算的参数模型，结合Gambit和Fluent仿真软件计算获得速度、温度和压力等流场参数。在Fluent中进行了2000次以上的迭代仿真运算得到了迭代残差小于1e-5的计算结果。速度场和压力场经对比分析均符合实际情况，温度场的计算误差为2%。结果表明：该计算方法可以客观描述尾焰流场的主要特征，快速仿真获得特定条件下的流场数据，为导弹尾焰红外特性的计算提供输入参数，提高尾焰的计算精度、节省尾焰的仿真时间。
도탄미염류장계산위미염홍외복사장계산제공기출수거。기우도탄미염류장적형성궤리연구，근거연소이론、류체역학、기체동역학，고필연소실내적연소화학반응건립미염류장계산적삼수모형，결합Gambit화Fluent방진연건계산획득속도、온도화압력등류장삼수。재Fluent중진행료2000차이상적질대방진운산득도료질대잔차소우1e-5적계산결과。속도장화압력장경대비분석균부합실제정황，온도장적계산오차위2%。결과표명：해계산방법가이객관묘술미염류장적주요특정，쾌속방진획득특정조건하적류장수거，위도탄미염홍외특성적계산제공수입삼수，제고미염적계산정도、절성미염적방진시간。
The calculation of missile plume flow field provides basic data for that of the infrared radiation field. The formation of missile plume flow field was mainly studied, and the model of plume flow field was bulit according to the theory of combustion, fluid mechanics, gas dynamics, and considering the chemical reaction of combustion in the combustion chamber, the key parameters of flow field: velocity, temperature and pressure fields of data were given by combining Gambit and Fluent. The result whose residual was less than 1e-5 was obtained after more than 2 000 times iteration in Fluent. Velocity and pressure fields were in line with the actual situation, the temperature field’ s calculation error was 2%. The results show that the plume flow model can reflect the main features of flow field plume, and it can quickly provide the data results which the designer wants to get. It’ s able to provide basic data for the calculation of missile plume infrared characteristics, improve the accuracy of the plume, and save simulation time.