Study on Liquid Phase Transition of Shaped Charge Jet Penetrating Liquid

The study of shaped charge jet penetrating liquid is increasing gradually in recent years, but the research of liquid phase transition in the process of penetration is lacking. It has a great significance to study whether the liquid phase transition occurs in the process of penetration. We consider to adopt theoretical derivation to demonstrate whether the phase transition occurs during the penetration process of liquid because it is difficult to observe the phase transition of liquid in experiments and the numerical simulation software cannot reproduce the phase transition process of materials. First, we simplified the calculation process to obtain the relationship between the velocity of shaped charge jet and the change of liquid temperature based on the temperature function of compressible model. Then, we deduced the geometric region of liquid temperature change based on Mie-Gruneisen equation of state. Finally, we synthesized the two theories to demonstrate the conjecture about liquid phase transition. This study has a certain guide in study of shaped charge jet penetrating liquid, especially liquid-filled enclosed structure disturbing jet.