Mechanical erosion of graphite nozzle material in solid-propellant rocket motors

Piyush Thakre, Rajesh Rawat, Richard Clayton, Vigor Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A detailed theoretical/numerical framework is established to study the mechanical erosion of graphite nozzle materials in solid rocket motors at practical operating conditions. The propellant considered is aluminized AP/HTPB composite propellant. A combined Eulerian-Lagrangian approach is used to treat the multiphase flow inside the motor. The multi-component gas-phase dynamics is modeled using the conservation equations of mass, momentum, and energy in the Eulerian framework. Turbulence closure was achieved using the standard k-epsilon two-equation model. The dispersed phase consisting of aluminum and aluminum oxide droplets are treated using Lagrangian framework. Two correlations were employed to predict the mechanical erosion of the nozzle surface. The calculated mechanical erosion rates fall in the range of the available experimental data. The erosion is prevalent in the convergent section of the rocket nozzle. No mechanical erosion was observed at the nozzle throat and its downstream.

Original languageEnglish
Title of host publication48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Publication statusPublished - 2010
Event48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: 2010 Jan 42010 Jan 7

Publication series

Name48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Conference

Conference48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Country/TerritoryUnited States
CityOrlando, FL
Period10-01-0410-01-07

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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