3D Simulations on Premixed Laminar Flame Propagation of iso-Octane/Air Mixture at Elevated Pressure and Temperature

Ratnak Sok, Jin Kusaka, Yasuhiro Daisho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper aims to validate chemical kinetic mechanisms of surrogate gasoline three components fuel by calculating one-dimensional laminar burning velocity of iso-octane/air mixture. Next, the application of level-set method on premixed combustion without consideration the effect of turbulence eddies on flame front is also studied in three-dimensional computational fluid dynamic (3D-CFD) simulation. In the 3D CFD simulation, there is an option to calculate laminar burning velocity by using empirical correlations, however it is applicable only for particular initial pressure and temperature in spark ignition engine cases. One-dimensional burning velocities from lean to rich of iso-octane/air mixture are calculated by using CHEMKIN-PRO with detailed chemistry and transport phenomena as a function of different equivalence ratios, different unburnt temperature and pressure ranges. A set of laminar flame table is then combined with 3D-CFD calculations with chemical kinetic mechanisms to track flame front displacements. A high-speed video camera at a frame speed of 2000 frames/sec is used to record the experimental flame positions of iso-octane/air combustion in a cylindrical shape constant volume combustion chamber (CVC). Different fuel-air equivalence ratios φ from lean to rich mixtures, ranging from 0.8 to1.4, are investigated at initial temperature of 420 K and 0.3 MPa of ambient pressure. The coupled simulations of one-dimensional adiabatic laminar burning velocity and 3D-CFD well predicts thermodynamics analysis of pressure-time and rate of heat release-time history and visualizations of flame front positions. Temperature and chemical species distributions of flame reaction zone are reported in comparison to that of experiments.

Original languageEnglish
Title of host publicationSAE Technical Papers
PublisherSAE International
Volume2015-March
EditionMarch
DOIs
Publication statusPublished - 2015 Mar 10
Event18th Asia Pacific Automotive Engineering Conference, APAC 2015 - Melbourne, Australia
Duration: 2015 Mar 102015 Mar 12

Other

Other18th Asia Pacific Automotive Engineering Conference, APAC 2015
CountryAustralia
CityMelbourne
Period15/3/1015/3/12

Fingerprint

Computational fluid dynamics
Air
Reaction kinetics
Temperature
High speed cameras
Video cameras
Combustion chambers
Internal combustion engines
Gasoline
Turbulence
Visualization
Thermodynamics
Experiments

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

3D Simulations on Premixed Laminar Flame Propagation of iso-Octane/Air Mixture at Elevated Pressure and Temperature. / Sok, Ratnak; Kusaka, Jin; Daisho, Yasuhiro.

SAE Technical Papers. Vol. 2015-March March. ed. SAE International, 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sok, R, Kusaka, J & Daisho, Y 2015, 3D Simulations on Premixed Laminar Flame Propagation of iso-Octane/Air Mixture at Elevated Pressure and Temperature. in SAE Technical Papers. March edn, vol. 2015-March, SAE International, 18th Asia Pacific Automotive Engineering Conference, APAC 2015, Melbourne, Australia, 15/3/10. https://doi.org/10.4271/2015-01-0015
Sok, Ratnak ; Kusaka, Jin ; Daisho, Yasuhiro. / 3D Simulations on Premixed Laminar Flame Propagation of iso-Octane/Air Mixture at Elevated Pressure and Temperature. SAE Technical Papers. Vol. 2015-March March. ed. SAE International, 2015.
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