Effect of Fuel Spray Evaporation on Turbulent Combustion

Heeseok Koo
Aerospace Engineering and Engineering Mechanics
The University of Texas at Austin

Spray combustion plays an important role in many practical devices including aircraft and internal combustion engines, chemical reactors, and power generation systems. Numerical simulation of spray combustion requires detailed description of gas-phase turbulent mixing and reaction as well as the dispersion of the liquid phase spray droplets. While modeling spray dispersion has received much attention in the past, spray-influenced gas-phase mixing and combustion are not fully understood, thus those are still modeled using conventional models. Physical understanding of the effect of spray existence and evaporation is necessary to develop a new combustion model. The object of this talk is to discuss the effect of sprays on gas-phase mixing and combustion. A Lagrangian method that evolves the spray number density is coupled with the large-eddy simulation (LES) technique to describe the turbulent combustion process. Algorithmic and modeling issues are discussed.

DATE: Thursday, October 16, 2008
TIME: 3:30 p.m.
LOCATION: WRW 113

Refreshments will be served

For further information please contact
D. Goldstein (471-4187)