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Combustion, Explosion and Shock Waves

2023 year, number 5

DETERMINING THE STATE EQUATION PARAMETERS OF EXPLOSIVES IN A JWL FORM FROM THE DATA OBTAINED BY THE OBSTRUCTION METHOD

E. N. Bogdanov, R. A. Voronkov, V. N. Knyazev
All-Russian Scientific Research Institute of Experimental Physics (VNIIEF), Sarov, Russia
Keywords: equation of state, explosive, explosion products, expansion isentrope, Chapman state -Jouguet, barrier method

Abstract

A new method for determining the parameters of the equation of state JWL of explosive products from experimental data is presented. The experimentally obtained values of pressure and mass velocity on the adiabat of expansion - deceleration of the explosion products are used as reference points. The values of the JWL equation of state parameters are determined using an iterative algorithm.