Combustion Kinetics Of Liquid-Solid Hybrid Fuels

FAE was a high explosive which was developed since 1960,the charge is not explosive but liquid-solid hybrid fuels.FAE makes full use of oxygen in the blast zone:liquid-solid hybrid fuels would mix with air and explode violently when they was dispersed in the certain conditions.Therefore,testing the combustion characteristics of liquid-solid hybrid fuels will benefit the research of cloud explosion characteristics.The combustion model of liquid-solid hybrid fuels is based on shrinking core model,using combustion experiment to summarize the combustion characteristics,The reaction model was determined by the basic parameters such as density,air resistance constant,mass loss constant after combustion.And the reaction model is combined with the trajectory equation of the liquid-solid hybrid fuels to simulate the data of cloud explosion.The gas is sampled and analyzed by gas sampling device.The activated alumina was used to adsorb the hydrogen fluoride in the cloud area and the adsorbed hydrogen fluoride was analyzed by fluoride ion selective electrode.Using the high speed camera to shoot the cloud explosion area,get the cloud area characteristics.The study shows that the process of compound fuel diffusion is divided into acceleration,deceleration and turbulence process.In this paper,the reaction model is consistent with the actual situation of cloud explosion,and the resistance model of composite fuel particle projectile is f?-kv~2.Iconic product distributes evenly in cloud area.This model has practical engineering application value and provides effective basis for predicting the parameters of cloud explosion.