Effect of momentum ratio on the mixing performance of unlike split triplet injectors

Y. D. Won, Y. H. Cho, S. W. Lee, W. S. Yoon

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Experimental investigation of mixing and mixing-controlled combustion efficiencies for sprays formed by unlike impinging split triplet injector elements was carried out. The quality of mixing was checked by performing cold-flow tests with inert simulant liquids. Measurements of local mass and mixture ratio distributions were made for different injection configurations and different jet momentum ratios. Results show that the quality of macroscopic mixing can be effectively characterized by the jet momentum ratio. The unlike split triplet element with lateral fuel injection is superior in mixing to either unlike doublet or unlike split triplet elements with central fuel injection. Secondary impingement appears to play a significant role in the extent of mixing. Mixing characteristics of the unlike split triplet element and its contribution to the promotion of macroscopic mixing efficiencies are discussed in detail.

Original languageEnglish
Pages (from-to)847-854
Number of pages8
JournalJournal of Propulsion and Power
Issue number4
Publication statusPublished - 2002

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Fuel Technology
  • Mechanical Engineering
  • Space and Planetary Science


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