Determination of the gun barrel walls temperature distribution and its experimental validation during multiple-shots firing process

Abstract

The different parameters of the combustion gases mixture were calculated allowing the calculation of the heat convection coefficient between the gases and the bore surface of the gun barrel. The heat conduction in the barrel was reduced to two axisymmetric problems. It was solved numerically using one-dimensional and two-dimensional heat conduction equations. Experiments were conducted to measure the exterior gun wall temperatures using thermal camera. The agreement between the measured and the calculated results enable the validation of the calculation models for both the gases parameters and the temperature distribution in the gun barrel.