三旋流器燃烧室出口温度分布的初步试验研究
A preliminary experimental study of pattern factor for a triple swirler combustor
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摘要: 针对高温升燃烧室对出口温度分布系数降低的需求, 采用三头部矩形燃烧室, 对三种不同的三旋流器头部组合方案进行了出口温度分布的试验, 重点研究了三旋流器旋向和头部当量比对燃烧室出口温度分布的影响.出口温度的测试方法采用了燃气分析法.试验结果表明外旋流器与中间旋流器旋向相反时, 出口温度分布均匀;头部当量比小, 出口温度分布均匀.头部当量比应与旋流器旋向共同考虑, 才能优化燃烧室出口温度分布系数.Abstract: To reduce the requirement of high-temperature combustor on pattern factor,a triple swirler was used to test the pattern factors of three different triple swirler packages.The focus of the research was placed on the effects of vane angle of triple swirler and equivalence ratio of the combustor dome on the combustor’s pattern factor.Gas analysis method was used for the measurement of combustor exit temperature.The result show that,when the swirl air from the third swirler and the second swirler was counter-rotating,the combustor exit temperature distribution became more uniform;and the lower the equivalence ratio of the combustor dome,the more uniform the combustor exit temperature distribution was.The vane angle and the equivalence ratio of the combustor dome should be taken into account in order to optimize the combustor’s pattern factor.
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Key words:
- aerospace propulsion system /
- aeroengines /
- combustor /
- pattern factor /
- triple swirler /
- gas analysis
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