CAJ | 학술논문

运用计算流体力学，数值模拟了超声速空心弹在表面穿孔与无穿孔条件下的流场参数分布，并对弹体表面的压力分布进行了计算。结果表明，穿孔会使弹丸表面流场分布变得更加复杂，增加新的斜激波与膨胀波系，但对壁面的压力影响不大，而使弹丸尾部压力减小。
운용계산류체역학，수치모의료초성속공심탄재표면천공여무천공조건하적류장삼수분포，병대탄체표면적압력분포진행료계산。결과표명，천공회사탄환표면류장분포변득경가복잡，증가신적사격파여팽창파계，단대벽면적압력영향불대，이사탄환미부압력감소。
Under the Condition of perforation and non-perforation for the surface, the paper made the numerical simulation of flow field parameter distribution by means of computation fluid mechanics, and computed the pressure distribution of projectile surface. The results show that the perforation can make the flow field distribution of projectile surface become more complicated, and increase the oblique shock wave and dilatation wave system, but it hardly affects the piahbin pressure and makes the pressure of projectile trail decrease.