Propagation rules of shock waves in confined space under different initial pressure environments.

ABSTRACT: In this paper, an initial pressure adjustable explosion vessel was developed, and the effect of negative pressure, positive pressure (0.2-1.8 atm) different initial ambient pressure on the explosive shock wave generated by the explosion of explosives was studied. The relationships between the specific impulse, shock wave velocity, the amount of explosive gas products and the ambient pressure were analyzed for different initial pressure environments. It was found that: the overpressure of the blast shock wave decreases with the initial ambient pressure of the explosion, and there exists a negative pressure environment with a dramatic pressure decrease near 0.6 atm, defined as the super-sensitive negative pressure P_cr. The propagation velocity of an explosive wave increases with a

SUBMITTER: Wang FQ 

PROVIDER: S-EPMC9399105 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature