- Author
-
Westbrook, C. K.
|
Corre, C.
|
Pitz, W. J.
|
Dryer, F. L.
- Title
- Computer Modeling of a Two-State Flame.
- Coporate
- Lawrence Livermore National Lab., CA
- Report
-
UCRL-JC-108180,
August 1991,
8 p.
- Distribution
- Available from National Technical Information Service
- Book or Conf
- Computational Fluid Dynamics, 4th International Symposium. September 9-12, 1991,
Davis, CA,
1991
- Keywords
-
computer models
|
laminar flames
|
premixed flames
|
reaction kinetics
|
flame front
|
reaction kinetics
- Abstract
- The structure of a very rich n-butane/oxygen/nitrogen laminar premixed flame is computed, using a numerical model and a detailed chemical kinetic reaction mechanism. The flame includes two independent fronts, the first of which is characterized by a conversion of fuel to stable intermediate species, the second of which is characterized by production of final species and heat release. Conventional numerical techniques for flame front resolution were not applicable to this problem, and a pragmatic solution to multiple front resolution became necessary. With this simplified approach, the fundamental chemical processes taking place in and controlling the flame were successfully elucidated. However, this problem illustrates the need for a more general solution technique to address problems with multiple fronts.