Simulation of a GOX-kerosene subscale rocket combustion chamber

Christoph Höglauer, Björn Kniesner, Oliver Knab, Christoph Kirchberger, Gregor Schlieben, Hans Peter Kau

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

In view of future film cooling tests at the Institute for Flight Propulsion (LFA) at Technische Universität München, the Astrium in-house spray combustion CFD tool Rocflam-II was validated against first test data gained from this rocket test bench without film cooling. The subscale rocket combustion chamber uses GOX and kerosene as propellants which are injected through a single double swirl element. Especially the modeling of the double swirl element and the measured wall roughness were adapted on the LFA hardware. Additionally, new liquid kerosene fluid properties were implemented and verified in Rocflam-II. Also the influences of soot deposition and hot gas radiation on the wall heat flux were analytically and numerically estimated. In context of reviewing the implemented evaporation model in Rocflam-II, the binary diffusion coefficient and its pressure dependency were analyzed. Finally simulations have been performed for different load points with Rocflam-II showing a good agreement compared to test data.

Original languageEnglish
Pages (from-to)31-40
Number of pages10
JournalCEAS Space Journal
Volume2
Issue number1-4
DOIs
StatePublished - Dec 2011

Keywords

  • Binary diffusion coefficient
  • CFD
  • GOX-kerosene
  • Gas radiation
  • Heat transfer
  • Rocket combustion chamber

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