Research on Pressure Feature of Airflow in Fuze Inlet Tube

摘要

The research on the pressure and velocity characteristics of the fuze inlet airflow as a second environmental force was done. The pressure difference under different airflow velocity between two pressure openings set up at fuze inlet tube throat and expansion section was obtained by CFD simulation. Through the simulation and analysis on ballistic characteristics and fluid pressure characteristics, the time characteristics of pressure difference of the pressure openings were summarized. Furthermore, the quantitative analysis result of the output signal and the feasibility of the pressure difference as an information source for fuse arming are put forward.