关键词: 环形燃烧室;温度分布;冷却系统;空气流

Abstract: The main factor affecting exit Radial Temperature Distribution Factor(RTDF)from annular combustors has been analyzed,and a predicting model has been established.Comparison between predictions and experimental results shown good agreements.The model can be used in annular combustors technical design to predict RTDF based on liner cooling air flow designed for cooling system.It also can be used to determine liner cooling air flow and its distribution between combustion zone and dilution zone based on the required RTDF.

Key words: Annular combustor;Temperature distribution;Coolant system;Air flow