Heat Flux in 2D Simulation
 

Hi,
I am running 2D simulations of combustion in a Multiple Slot Burner with 7 fuel slots and intermediate air slots at burner inlet. Velocity inlet boundary condition was used at burner inlets and pressure outlet boundary condition was given at burner exit which is 150mm above the inlets. The walls on either side are adiabatic.
Now I have to calculate Heat Flux at different heights in the burner.Heat Flux at burner exit (pressure outlet) was easily found but i have no idea how to find Heat Flux inside the burner at different heights like 25mm,40mm and 60mm above injection slots. (Burner is 115mm wide and 150mm high)
I will be very much thankful for help regarding this matter.