Flow and thermal field measurements in a combustor simulator relevant to a gas turbine aeroengine

S. S. Vakil, K. A. Thole

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The current demands for high performance gas turbine engines can be reached by raising combustion temperatures to increase power output. Predicting the performance of a combustor is quite challenging, particularly the turbulence levels that are generated as a result of injection from high momentum dilution jets. Prior to predicting reactions in a combustor, it is imperative that these turbulence levels can be accurately predicted. The measurements presented in this paper are of flow and thermal fields produced in a largescale combustor simulator, which is representative of an aeroengine. Three-component laser Doppler velocimeter measurements were made to quantify the velocity field while a rake of thermocouples was used to quantify the thermal field. The results indicate large penetration depths for the high momentum dilution jets, which result in a highly turbulent flow field. As these dilution jets interact with the mainstream flow, kidney-shaped thermal fields result due to counter-rotating vortices that develop.

Original languageEnglish (US)
Pages (from-to)257-267
Number of pages11
JournalJournal of Engineering for Gas Turbines and Power
Volume127
Issue number2
DOIs
StatePublished - Apr 2005

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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