Analysis of muzzle flow field of asynchronous firing of multi barrel aircraft gun under strong convection

Abstract Based on the N - S equation and k- ε model, this article uses dynamic grid technology to finish numerical simulation of projectile-barrel coupling for muzzle flow field double-barreled aircraft gun during asynchronous firing under different incoming Mach numbers intervals. The influence law projectile motion is studied. results show that when there supersonic flow, radial force will increase with number. At same time, larger number, earlier be affected. Under inflow fired asynchronously significantly lower than synchronously. interval, smaller projectile.