Simulation study of flushing ablation by gas-solid two phase flow of artillery barrel

Abstract

For the wear problem of artillery barrel bore during artillery launching, this work uses particle erosion and deposition modules in Fluent Software to simulate the erosion process of gunpowder gas particles on artillery barrel, analyses steady and transient states simulation results, and compares the effects of different influencing factors on barrel bore wear. The results showed that in a certain range, the erosion rate of barrel bore wall was positively correlated with particle velocity and mass flow. 0.25 mm was a critical particle size, and the erosion rate decreased with the increase of particle diameter. This information is valuable for prolonging the service life of artillery barrel.