A Large eddy simulation of the Sandia D, E, F flames using the developed variable ignition mixing layer to generate 2-D FGM table

The flamelet library in FGM model is constructed based on mixture fraction and progress variable. This library facilitates to model the reactive flow precisely only in the case of two fuel/oxidizer in-flow streams. For the case of more in-flow streams, e.g. Sandia piloted flames fuel jet/ pilot/ air, it is needed to extend dimensions of the FGM library. This extension increase the size of stored data leads to higher computational cost. In this paper, the main motivation is to develop the Ignition Mixing Layer method (IML) to the Variable Ignition Mixing Layer (VIML) as the novel approach to generate the 2D FGM table for multi in-flow streams. Large Eddy Simulations of the Sandia D, E, and F with Reynolds number of 22400, 33600, and 44800 were conducted to validate this method. The LES results show a good agreement on the mean and variance of the mixture fraction and temperature. Therefore, the VIML is a successful model to simulate multi in-flow streams with 2D FGM library.