Inhibition effect of water injection on afterburning of rocket motor exhaust plume

Yi Jiang*, Yanli Ma, Weichen Wang, Liwu Shao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

One of the most important characteristic signatures of the exhaust plume from rocket motor is the afterburning phenomenon, and the injected water into the plume could inhibit the afterburning. The calculation model for the gas-liquid multiphase flow field with chemical reaction in the plume is built. By inducing the energy source terms caused by the vaporization of liquid water, condensation of the vapor and chemical reaction in the energy equation, the gas-liquid multiphase flow field and the afterburning phenomenon are calculated in a coupling way. Mixture multiphase flow model is used to calculate the gas-liquid flow field, and the vaporization mechanism is used to investigate the water vaporization process. The temperature contours are obtained and accord well with the experimental photos. The mass fraction contours of primary species are obtained, which can indicate the extent of inhibition effect of water injection on the afterburning phenomenon in the plume. When water is injected into the plume, the region of afterburning reduces a lot, and temperature on the ground wall declines rapidly, which can decrease the ablation of the combustion gas to the launch ground.

Original languageEnglish
Pages (from-to)653-659
Number of pages7
JournalChinese Journal of Aeronautics
Volume23
Issue number6
DOIs
Publication statusPublished - Dec 2010

Keywords

  • afterburning
  • coupling solution
  • exhaust plume
  • finite rate chemistry model
  • mixture multiphase flow
  • vaporization
  • water injection

Fingerprint

Dive into the research topics of 'Inhibition effect of water injection on afterburning of rocket motor exhaust plume'. Together they form a unique fingerprint.

Cite this