Development of an Adaptive Technique to Reduce Combustion Thermochemistry

Americo Cunha Jr (1) , Luís Fernando Figueira da Silva (2)

1 UERJ - Universidade do Estado do Rio de Janeiro [Brasil] = Rio de Janeiro State University [Brazil] = Université d'État de Rio de Janeiro [Brésil]
2 PUC-Rio

The numerical study of combustion requires description of chemical kinetic mechanisms of the reactions involved in the process. Typically, a detailed chemical kinetic mechanism for description of hydrocarbons reaction with air involves tenths of species, hundreds of elementary reactions and timescales that vary up to nine orders of magnitude. The solution of a detailed reaction mechanism is computationally demanding. This leads to the development of techniques that allow the reduction of the computational cost of the problem. A methodology that may allow to decrease the computational time by three orders of magnitude is the in situ adaptive tabulation (ISAT), proposed by Pope (1997). The objective of this work is the development of such a technique.

Domaines: Milieux fluides et réactifs; Mécanique des fluides [physics.class-ph]; Probabilités [math.PR]; Statistiques [math.ST]

Americo Cunha Jr, Luís Fernando Figueira da Silva. Development of an Adaptive Technique to Reduce Combustion Thermochemistry. II Escola de Combustão (II EdC), Jun 2009, São José dos Campos, Brazil. ⟨hal-01949215⟩