Abstract:
To analyze the emissions of a turbulent lean
premixed Methane-air combustor, a level set Gequation method has been implemented in the Large
Eddy Simulation (LES) framework using parallel
personal server. The server consists of 36 nodes with
12 CPU cores a node. GRI-MECH 3.0 which is a
compilation of 325 elementary chemical reactions with
53 species, has been used with Presumed-Probability
Density Function (PDF) method. The combustion
flames from each injector move extremely dynamically
and rotate in different directions from adjacent
injectors because the swirl directions of each injector
are opposite to the adjacent injectors. CO has high
concentration on the flame and disappears rapidly
after the flame due to the lean premixed conditions. NO
mole fraction increases continuously after the flame
and then is emitted at the exit of combustor.
