Fast computation of multi-scale combustion systems

TL;DR

This paper introduces a novel method for efficiently constructing simplified models of complex multi-scale combustion systems, enabling faster reactive flow simulations with reduced computational cost.

Contribution

The paper presents the Relaxation Redistribution Method (RRM) for creating reduced models of combustion systems and demonstrates its application in reactive flow simulations.

Findings

RRM effectively reduces model complexity.

Simplified models enable faster simulations.

Application to methane-air systems shows promising results.

Abstract

In the present work, we illustrate the process of constructing a simplified model for complex multi-scale combustion systems. To this end, reduced models of homogeneous ideal gas mixtures of methane and air are first obtained by the novel Relaxation Redistribution Method (RRM) and thereafter used for the extraction of all the missing variables in a reactive flow simulation with a global reaction model.