The effects of metal oxide particles in the exhaust gas, nozzle inlet angle and throat radius of curvature on nozzle flow are investigated by a numerical analysis and experiments.
The velocity lag and thermal lag between the hot gas and particles cause momentum loss and energy conversion loss of the exhaust hot gas.
The non-equilibrium flow in the nozzle is affected by the nozzle inlet angle and throat radius of curvatures.
The impingement of particles to the divergent wall which causes serious wall erosion problem is also founded to be greatly dependent on the throat configuration.
The specific impulse efficiency increase with decreasing nozzle inlet angle and with increasing throat radius of curvatures.
