Analysis of parameters influencing the pressure and temperature distribution in the gun bore evacuator

The purpose of a gun bore evacuator on the turret-mounted barrel is to prevent entry gaseous products propellant combustion into turret compartment vehicle after breech block opening. mathematical model which takes account all main parameters influencing pressure change inside cylinder was developed. Differential equations that describe flow field through nozzle in wall and were solved numerically. Furthermore, numerical simulations performed using ANSYS FLUENT order analyze phenomena occuring during charge discharge cycles are difficult be taken with analytical model. Aforementioned 3-D initial boundary conditions obtained from interior ballistic calculations. In find static evacuator, experimental research performed. comprehensive comparison between results data has shown good agreement. Based upon this analysis, influence evacuator?s design distribution temperatures critical zones determined. propellant?s temperature also analyzed, due wide range operating possibility erosion occurrence.