Numerical Study of Interior Trajectory of Missile Ejection Based on Mechanics

An interior trajectory simulation of the gas-steam missile ejection has been developed with the help of FLUENT software. One of the special features of this simulation is the method by which the coupled two-phase problem is reduced to solving the fluid equations only. The calculation has been done efficiently in FLUENT after setting all the required parameters and adding the source terms. Several figures of the velocity and pressure have been given to show the flow field in the reservoir. The distribution curves of the velocity and acceleration of the missile show that the results of the simulation are in good agreement with the test data of the experiments. This model can be used to analyze the similar launch procedures in practice.