Study on spatial position distribution of a dynamic detonation shock wave field

DOI:	10.11809/bqzbgcxb2023.02.003
Keywords:	air blast; moving explosive charge; shock wave characteristics; shock wave front; numerical simulation
Abstract:	In order to study the effect of charge velocity on spatial position distribution of an explosion shock wave field, this paper numerically simulates an air blast shock wave field at different charge velocities, and obtains evolution process images of the field. The simulation results show that the shape of the explosion shock wave front is no longer spherical under the influence of the charge velocity, and the shock wave action field moves along the direction of the charge velocity. The amount of its movement can be characterized by the movement of the geometric center of the area surrounded by the wave front. When the movement stops, the moving distance of the center is approximately proportional to the charge velocity. The dimensional analysis of the moving distance of the geometric center is carried out, and its engineering calculation model is established on the basis of the simulation data. The verification results show that the calculation model has good accuracy and certain universality.
Published:	2023-02-28
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