截短导弹模型对尾舵特性影响的数值计算研究

Influence Study of Cutoff Missile Body on Tail Fin Characteristic by Numerical Calculation

气动特性数值计算目前已经成为导弹设计的重要手段。本文运用数值模拟方法研究导弹前体截短长度对尾舵特性的影响,得出结论:适当截短弹体前段对细长体导弹的尾舵气动特性影响很小,并且,研究大长细比导弹尾舵特性时,适当截短导弹前段可以提高试验数据的精度和准确性。

Aerodynamic characteristic numerical calculation is an important gist for missile design. In this paper, the numerical simulation is used as a tool for analyzing and reasearching the tail fin characteristic. The characteristics of cutoff body and that of the full body are compared. The conclusion is that proper cutoff for the section of the body upstream of the tail has only a little influence to the tail aerodynamic characteristics for slender body missile, and can improve test data precision and accuracy.