Direct numerical simulation of temporally evolving luminous jet flames with detailed fuel and soot chemistry

Conference · Sat Jan 01 04:00:00 EST 2011

OSTI ID:1024320

Sankaran, Ramanan ^[1]

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1. ORNL

Direct numerical simulations of 2D temporally-evolving luminous turbulent ethylene-air jet diffusion flames are performed using a high-order compressible Navier-Stokes solver. The simulations use a reduced mechanism derived from a detailed ethylene-air chemical kinetic mechanism that includes the reaction pathways for the formation of polycyclic aromatic hydrocarbons. The gas-phase chemistry is coupled with a detailed soot particle model based on the method of moments with interpolative closure that accounts for soot nucleation, coagulation, surface growth through HACA mechanism, and oxidation. Radiative heat transfer of CO{sub 2}, H{sub 2}O, and soot is treated by solving the radiative transfer equation using the discrete transfer method. This work presents preliminary results of radiation effects on soot dynamics at the tip of a jet diffusion flame with a particular focus on soot formation/oxidation.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Computational Sciences
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1024320
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHEMISTRY
CLOSURES
COMBUSTION
DIFFUSION
FLAMES
HEAT TRANSFER
KINETICS
NUCLEATION
OXIDATION
PARTICLE MODELS
POLYCYCLIC AROMATIC HYDROCARBONS
RADIANT HEAT TRANSFER
RADIATION EFFECTS
SIMULATION
SOOT