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Proceedings of CAD'15, 2015, 75-79
External Ballistics for an Anti-Aircraft Gun with Flow Simulations around a Bullet
Abstract. External ballistics has been researched for a long time because it is one of key factors in the design process for an anti-aircraft gun. The trajectory of a bullet from artillery is affected by many parameters such as mechanical and environmental conditions. The main parameters include the traverse and elevation angles of a gun barrel, muzzle velocity, rotational speed and mass of a bullet, wind velocity, etc. External ballistics has been established and developed with the point mass trajectory model. Ignoring the Magnus force and pitching force of a bullet referring to the study of Lieske and Reiter, a modified point mass model is dependent only the drag and the lift of a bullet and can be expressed by a partial differential equation.
Keywords. External Ballistics, Anti-Aircraft Gun, Flow Simulation, Drag Coefficient, Lift Coefficient, Bullet