Assumptions:


• One dimensional steady subsonic flow.


• Properties of component gases depend upon temperature.


• Ideal gas behavior is valid for all the gases.


• Flame is freely propagating.


• No heat losses by radiation occur from the flame.

Model:


• Governing equations of continuity, momentum, energy, and species are written.


• Chemical kinetics is modeled using a readymade mechanism called GRI2.11 [1].

Boundary conditions:


• Inflow boundary:
  • Known inlet velocity
  • Known temperature
  • Known mass fractions of CH₄, O₂, and N₂



• Outflow boundary:
  • Communicates with the ambient
  • Pressure is 101325 Pa

Important Terms



Governing Equations