Author(s)

T. Kobayashi & N. Taniguchi

Abstract

A numerical prediction of turbulent combustion flows with a large eddy simulation (LES) is applied to a combustion equipment design. Numerical methods and models for turbulent combustion are developed for the LES of the premixed combustion flows and validated with a test chamber, which examines a practical combustion design in a gas-turbine system. A comparison with the experiment indicates that the present method can predict a turbulence velocity Held and also capture an instantaneous three-dimensional flame structure. A flame propagation process is also investigated by time dependent visualization from this simulation. 1. Introduction A recent recognition in an environmental situation and a limitation of energy resource requires us to develop energy systems which can be more adaptive to an alternative energy resource and

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