Non-premixed combustion: local heat release rate

LB

Hi I was was wondering how the local heat release rate is calculated in Fluent??? I know in FDS it is computed by "first locating the flame sheet, then computing the local heat release rate per unit area, and finally distributing this to the grid cells that cut the flame sheet, so the infintesimally thin flame sheet is smeared out over the width of the cell"

Is Fluent the same?

Thanks in advance for your help!