Numerical Analysis of 100mm Naval Gun Barrel Composite Cooling Based on Multiphase Flow.

Active cooling technology is widely used in naval gun. The composite cooling system with external circulating water cooling technology and internal spray cooling technology is adopted for 100mm medium caliber naval gun. In order to optimize the cooling efficiency of barrel and improve the combat effectiveness and safety performance of naval gun, it is of great significance to study the internal fluid field and barrel temperature field under the condition of composite cooling. Regarding 100mm naval gun as the object of the research, this paper proposed to use numerical analysis method combining classical interior ballistics with computational fluid dynamics to establish the transient CFD three-dimensional model based on multiphase flow. Physical quantities such as temperature, velocity, species distribution, and interphase mass transfer in the calculation domain were calculated through simulation, and the temperature changes of the barrel with and without the cooling system were compared and analyzed. Finally, the laws of the gun barrel were obtained, which provided references for further study. [ABSTRACT FROM AUTHOR]