Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
IMPLEMENTATION OF FGM TECHNIQUE IN THE OPEN SOURCE PACKAGE OPENFOAM TO SOLVE A NON PREMIXED LAMINAR FLAME
Submission Author:
Lisandro Maders , RS , Brazil
Co-Authors:
Cristian Alex Hoerlle, Fernando Pereira, Lisandro Maders
Presenter: Lisandro Maders
doi://10.26678/ABCM.COBEM2017.COB17-0722
Abstract
The present study solves a diffusive laminar jet flame through numerical simulation. The fuel used is pure methane and methane diluted in nitrogen. Due to the high computational cost even for laminar flames, the use of chemical kinetics simplification approaches become necessary. The Flamelet-Generated-Manifold technique is based on the flamelets and \manifold approaches. The implementation of such technique in the open source tool OpenFOAM is performed on a multidimensional scope from an already built manifold. Results from literature are used to verify the implementation and evaluate the technique. Simulations using 1-step global mechanism are also performed in order to compare both chemical kinetics approaches. The FGM presented better results compared to the 1-step mechanism, getting closer to the detailed mechanism. The quality of the FGM results decreased when varying the fuel composition.
Keywords
FGM, DRM19, inlet boundary condition, truncated, extended
