Numerical Simulation And Experiment Research On Individual Tube Weapon Fluid Balance Emission

With the rapid development progress of individual tube-shape weapons, the ability of "launching in the limited space" has been strongly emphasized. In this dissertation,simulation and experiments was performed on individual tube-shape weapons, investigating on the impact(flash-. smoke and noise reducing) of installing liquid tank on the convection gas. The contents of this thesis mainly include the following parts:(1) Modeling and the method of CalculationThe liquid balance launch system working process of individual tube-shape weapon was divided into four stage for analysis. The mathematical model of interior ballistic process was established from theory aspect. Building the unsteady gas-liquid flow model, which is close to actual,through simplifying the assumptions and theory.(2) Numerical simulationBased on the Runge-Kutta, numerical calculation of two different explosive payload(65g and 95g) for fluid balance launch system working process was carried out,and obtained the complete interior ballistic curve.Modeling the system mentioned above(unsteady gas-liquid flow of liquid balance launch system),and the condition that installing liquid tank on the convection gas. The pressure,temperature,the distributions of velocity, p-1 curve,t-1 curve,and v-1 curve were obtained, giving theoretical support to the feasibility about flash n smoke and noise reducing with installing liquid balance tank.(3) Experiments on the individual tube-shape weaponExperiments research under different explosive payload(65g and 95g) was performed.The parameter such as pressure and unsteady gas-liquid flow process was recorded.Comparing the experiments data and the result of numerical simulation, the feasibility about flashy smoke and noise reducing with installing liquid balance tank was confirmed.