Abstract: |
In order to avoid the influence of gas around the muzzle during the after effect period, this paper changes the size of the cylindrical muzzle device, uses CFD simulation and analysis, combines the dynamic mesh technology and oversetmesh technology, and uses realizeable k ε turbulence model to simulate and calculate the muzzle flow field. The influence degree of gas on the surrounding environment is determined by the temperature of the observation point at the same position. The research shows that when the dimension design aspect ratio of the muzzle device is greater than 1, the influence of the muzzle air flow on the surrounding environment can be reduced by 40%, and under the same aspect ratio, the cylindrical muzzle device with the same proportion can better reduce the influence on the surrounding environment. |