Research progress and comparative analysis of shock wave parameters in free air explosion
ZHANG Luyao
LI Rui
WU Wei
SUN Rui
LI Yan
WANG Quan
CUI Xiaorong
Abstract：When explosives explode in the air free field,air shock wave will propagate outward,causing damage and destruction to the target.The destruction effect of shock wave on the target mainly depends on the characteristic parameters of the shock wave positive pressure phase region.Domestic and international scholars have conducted a lot of theoretical analyses,numerical simulations,and experimental researches on explosion shock wave parameters,achieving numerous research outcomes.This paper reviews the empirical formulas for characteristic parameters of shock waves in the positive pressure phase region,including peak over pressure,specific impulse,positive pressure duration,and shock wave arrival time.These formulas are compared and analyzed against numerical simulation and experimental data,to get empirical formulas that can more accurately describe explosion shock wave parameters.It provides a reference for the research on the assessment of explosive explosion shock wave parameters and explosion protection.
Keywords：explosion shock waveover pressurespecific impulsepositive pressure durationarrival time
Publication Date：2025-09-30
Online Publishing Date：2025-10-15(First online date of this platform, not the publication date of the document)
Pages：9( 1-9 )