Numerical study of gas-particle flow in a solid rocket nozzle

Abstract

The numerical solution procedure has been developed to analyze gas-particle flow in a solid rocket nozzle. The time-dependent) explicit MacCormack scheme is adopted to solve the governing equations derived from the trajectory model. The velocity, trajectory, and temperature of the solid particles are treated with the Lagrangian approach. To study the particle diffusive velocity, which is included to account for the turbulent effect, the equation of particle number density is solved by the hybrid scheme. The results of this study indicate the level of gas-particle coupling and the differences that can be expected for the different sizes and mass fractions of particles.