Turbulent burning characteristics of FACE-C gasoline and TPRF blend associated with the same RON at elevated pressures

O. Mannaa*, P. Brequigny, C. Mounaim-Rousselle, F. Foucher, S. H. Chung, W. L. Roberts

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Fuels for Advanced Combustion Engine (FACE)-C gasoline/air and toluene primary reference fuel (TPRF) (51.6 vol% iso-octane, 21.5 vol% n-heptane and 26.9 vol% toluene)/air mixtures corresponding to the same Research Octane numbers (RON) of 85 were characterized in terms of determining their burning rates in a fan stirred turbulent vessel and filmed using a high-speed dual Schlieren imaging technique. Also, a Mie scattering planar laser tomography was employed to characterize the variations of flame morphology induced by the simultaneous existences of different turbulent length scales and the susceptibility to develop cellular structures at elevated pressures (through the Darrieus-Landau instability). Measurements were performed in a well-controlled environment of initial pressures 0.1, 0.5 and 1.0 MPa at a fixed initial temperature of 358 K at a range of measured turbulence intensities from 0.5 to 2.0 m/s. The enhancement of turbulent burning velocity ST as a function of turbulence intensity was evaluated. The absence of bending regime was accounted for based on the size of the vessel and limited range of turbulent intensities investigated in the present work. All the present data were empirically correlated by power-law correlation derived for a different flame-type configuration to test its sensitivity to the geometry and type of the burner investigated.

Original languageEnglish (US)
Pages (from-to)104-114
Number of pages11
JournalExperimental Thermal and Fluid Science
StatePublished - Jul 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Inc.


  • Expanding turbulent flames
  • FACE gasoline
  • High pressure
  • TPRF
  • Turbulent burning velocity

ASJC Scopus subject areas

  • General Chemical Engineering
  • Mechanical Engineering
  • Aerospace Engineering
  • Fluid Flow and Transfer Processes
  • Nuclear Energy and Engineering


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