Analysis and research on the impact of bullet head eccentricity on air resistance

Abstract

Through numerical simulation, the transverse resistance of the head eccentric bullet at 0.29 Ma, 0.58 Ma, 0.97 Ma and the eccentricity angle of 0° ~5° in the air was studied. When the bullet head deflects and flies at a certain speed, the tip of the bullet produces agitation to the air. This paper tries to find out the angle of minimum resistance by using the simulation software ANSYS when the eccentricity angle of the bullet head is between 0° and 5° degrees, and optimize the shape of the existing bullet. In this paper, three kinds of velocity are simulated. The simulation results show that the resistance of the head eccentric bullet in flight can become smaller. There is always a corresponding head eccentric angle at different speeds to minimize the flight resistance. As a result, the bullet can fly faster and farther.