Numerical Simulations of Plasmas Generated by Air Explosion

The explosion process of explosives is very complex, often accompanied by phenomena such as luminescence, heat, and electromagnetic radiation. Many studies have shown that the electromagnetic radiation of explosive explosions is related to plasma generated by explosion. In this paper, through the thermal equilibrium ionization model, the plasma model of explosive explosion is established, the calculation formula of plasma state parameters is obtained, and the plasma dynamics program is written. The numerical simulation analysis of the air explosion conditions is carried out by using the plasma dynamics program, and the relationship between the electron density and conductivity of the air explosion plasma and the mass of explosive and distance are summarized.