A Computational Study into the Influence of Cold Film on Can Combustor Annulus Flow

The computational fluid dynamics using CFD codes is one the convenient tools to analyze the fluid flow and heat transfer and to minimize the testing cost and efforts. This paper focuses on a computational study of the cold film flow in annulus with heat transfer from liner wall of can combustor could be used in power gas station. The Computational results have been validated with the experimental data. Two numerical models (RNG, SST) are used to investigate the air flow in annulus with heat transfer to study the annulus flow behavior. Temperature distribution along liner wall, cooling effectiveness cold film and turbulent intensity have been taken into account. The result show that these CFD models are good tools to investigate the heat transfer with air flow in the combustor. The RNG and SST model give different about 6% for effectiveness factor.