Learning Forum

[Cabbage123]

Hi there,

When generating steady non-adiabatic flamelets for non-premixed combustion, the species composition is determined by a process involving the summation over the reactions in the chemical mechanism. Are only the forward reactions considered?

Thanks!

[jcooper]

HI Cabbage123:
If you are reading in a Chemkin Mechanism which has the forward and reverse indicators for a reaction, then both directions are considered
For instance, take the reaction expert below :
REACTIONS
2O+M<=>O2+M1.200E+17-1.000.00
H2/ 2.40/ H2O/15.40/ CH4/ 2.00/ CO/ 1.75/ CO2/ 3.60/ C2H6/ 3.00/ AR/.83/
Reactions with = or <=> between products and reactants have forward and reverse rates. => indicates forward rate only.
If you enter a reaction manually, the forward and backward rates must be specified directly.