Radiation and roughness effects on the thermochemical erosion of ablative materials in rocket nozzles

Alessandro Turchi, Daniele Bianchi, Piyush Thakre, Francesco Nasuti, Vigor Yang

研究成果: Conference contribution

摘要

Surface roughness and radiative heat transfer effects on the ablative behavior of a graphite nozzle are studied. A validated numerical approach, that relies on a full Navier- Stokes flow solver coupled with a thermochemical ablation model is used for the analysis. A modification of the Spalart-Allmaras turbulence model is implemented to account for surface roughness. Different simplified models are used to evaluate the integral emissivity in case of metallized propellants and the net radiative heat flux is considered in the surface energy balance. Individual and combined effects of these phenomena are analyzed. Results show that the influence of surface roughness and radiation heat transfer on the erosion rate is dependent on the erosion regime.

原文English
主出版物標題51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
發行者American Institute of Aeronautics and Astronautics Inc.
ISBN(列印)9781624101816
DOIs
出版狀態Published - 2013
事件51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, United States
持續時間: 2013 一月 72013 一月 10

出版系列

名字51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Other

Other51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
國家United States
城市Grapevine, TX
期間13-01-0713-01-10

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

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