The work aims to reduce the recoil of the gun while ensuring that the overpressure and temperature in the gun-ner's area meet the requirements.A numerical simulation of the muzzle flow field was carried out by fluid simulation software.The influencing factors of brake performance were simulated and analyzed.According to the analysis results,the improved brake model was obtained,and the simulation and experiment were compared.The results showed that the performance of the brake was most affected by the side hole external reflection baffle and the side hole inclination,and this impact varied with changes in the angles.The overpressure and temperature behind the muzzle were reduced effectively by installing the blow hole.The efficiency of the improved brake was increased by 8.33%.The overpressure behind the muzzle was decreased by 44.10 kPa on average.And the temperature behind the muzzle was decreased by 358.28 K on average.It is proved that the improved brake has higher efficiency and lower overpressure and temperature behind the muzzle.
维普
万方数据
