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Numerical prediction of fuel distribution in a ramjet chamber(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2008年04期
Page:
17-21
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical prediction of fuel distribution in a ramjet chamber
Author(s):
Huang Rixinl; Tan Yonghua2
1 Xi'an Aerospace Propulsion Institute，Xi'an 7 10100，China； 2 Academy of Aerospace Propulsion Technology，Xi’an 710100，China
Keywords:
ramjet：combustion chamber; fuel concentration; eddy dissipation concept model
PACS:
TKl6
DOI:
-
Abstract:
A simple numerical analysis was conducted to explore the fuel vapor distribution in a ramjet combustion chamber，especially in the near-field and inside of flame holder．With the help of Fluent software two-phase reacting flow module，the 3D numerical simulation was performed by US— ing eddy dissipation concept model．A general law of fuel distribution in hot flow of the chamber was obtained in the simulation．The simulation results indicate that there iS a rich—fuel area inside the holder and near its downstream part．Then，the fuel concentration falls down rapidly over the com— bustion area．The results also indicate that both back inner walls of the radial evaporating pipe and inside the outer circumferential evaporating pipe aye fuel concentrations，but the fuel concentration inside the mid-circumferential-pipe is lean，which is accord with the experiment results very well．

References:

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Last Update: 1900-01-01