NUMERICAL SIMULATION OF 3D MUZZLE BRAKE FLOW FIELD

Muzzle brakes can control the outflow of powder gas,reduce the backlash,and improve the maneu- verability of artilleries.In this paper,muzzle flow field of a musket without a muzzle set is simulated by Euler Equation and LU Decompositions Method.The computation results agree with the experiment results very well.The muzzle flow field of an artillery with a muzzle brake is also simulated.The main characteristics and the mutual relations of shock waves in the muzzle flow field are obtained by the simulation.On the basis of the simulation results,the influences of the brake holes on the muzzle brake capabilities are analyzed.The details of the muzzle flow field in this paper will be useful in the study of the holistic capability of the muzzle brakes.