engleski

Large eddy simulation of two significantly different turbulent premixed flames in the framework of SGS model based on coherent structures

In this work large eddy simulation of two significantly different turbulent premixed flames, the highly stretched flame and the swirling flame, were performed in the framework of a SGS model based on coherent structures, the LES-CSM. The aim of this work is to show that the LES-CSM SGS model can be used as a general framework for modelling the turbulent transport in all varieties of laboratory-scale turbulent premixed flames. Both approaches, the one based on LES-CSM SGS model and standard Smagorinsky approach, are showing good agreement when comparing mean flame velocity and progress variable, but LES-CSM gives better representation of their variances.

Coherent structure method (CSM); Large eddy simulation (LES); Turbulent premixed combustion

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