The extension of the reaction/diffusion manifold concept to systems with detailed transport models

作者：Maas U; Bykov V^*

来源：Proceedings of the Combustion Institute, 2011, 33: 1253-1259.

DOI：10.1016/j.proci.2010.06.117

• Model reduction
• Differential diffusion
• Invariant manifolds
• REDIM
• Laminar flames

Chemically reacting flows are governed by a strong interaction of chemical kinetics with molecular transport properties. Therefore, reduced models for such systems have to take into account both the chemical reaction and the diffusion processes, in particular if detailed transport models are used which account for effects of differential as well as for thermal diffusion. In order to deal with this problem the recently developed reduction method, the so-called reaction-diffusion manifolds (REDIM) method that accounts for the transport properties and their influence onto a reduced system's state space is extended to handle effects of detailed transport models. The syngas/air combustion system, as a transparent example where non-equal diffusivities play an important role, is considered for both premixed and non-premixed 1D flame configurations. 1D and 2D reduced models are compared to detailed system solutions and validate the approach.

• 出版日期2011