一种基于Whitham方程的导弹冲击波仿真优化方

Missile Shock Wave Simulation Optimization Based on Whitham Equation

摘要:

针对采用 Whitham 方程进行导弹冲击波仿真时,由于形状系数为经验常数导致

仿真结果不准确的问题,提出了一种导弹冲击波仿真的优化方法。在冲击波振幅及周期仿真

计算时,将使用导弹横截面函数计算所得的形状系数替代以往的经验常数,并引入了计算流体

力学进行建模仿真优化。结果表明:该仿真优化方法可以提高导弹冲击波仿真结果的准确性,

并具有普适性。

Abstract:

Aiming at the problem that the shape coefficient is an empirical constant, which leads to the inaccurate simulation results obtained by using Whitham equation for missile shock wave simulation, an improved simulation method based on Whitham equation is proposed. Different shape coefficients are used in shock wave amplitude and period simulation, and computational fluid dynamics (CFD) analysis is used to model and optimize. The results show that the proposed method can improve the accuracy of missile shock wave simulation,and has universal applicability.

Abstract:

Aiming at the problem that the shape coefficient is an empirical constant, which leads to the inaccurate simulation results obtained by using Whitham equation for missile shock wave simulation, an improved simulation method based on Whitham equation is proposed. Different shape coefficients are used in shock wave amplitude and period simulation, and computational fluid dynamics (CFD) analysis is used to model and optimize. The results show that the proposed method can improve the accuracy of missile shock wave simulation,and has universal applicability.