先进燃烧室分配器式扩压器实验研究

推进技术 ›› 2013, Vol. 34 ›› Issue (1): 88-94.

先进燃烧室分配器式扩压器实验研究

李瀚,索建秦,梁红侠,黎明,刘强

西北工业大学动力与能源学院,陕西西安 710072 ;中国商飞上海飞机设计研究院动力燃油部,上海 200235;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072

发布日期:2021-08-15
作者简介:李瀚(1985—),男,硕士生,研究领域为航空动力及流体机械。E-mail:124434097@qq.com

Experimental Study of Distributor Type Diffuser Performancefor Advanced Combustor

School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;Power and Fuel System Department,Shanghai Aircraft Design Research Institute,Shanghai 200235,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China

Published:2021-08-15

摘要/Abstract

摘要： 针对高性能航空发动机燃烧室进口马赫数不断提高,同时先进燃烧组织对流量分配及头部空气动力学的要求,设计出一种适用于可变几何燃烧室的新型燃烧室扩压装置—分配器式扩压器。通过试验研究,重点研究了分配器式扩压器的总压损失与马赫数以及面积比的关系,分配式扩压器挡板对流场的影响。结果表明:当马赫数为0.359时总压损失为3.57%,这说明扩压器总压损失符合要求；存在一个面积比1.6~2.1使得扩压器出口流畅分布均匀；挡板可以改变流场分布和入口压力参数。 

关键词: 燃烧室;分配器式扩压器;试验;总压损失;流场分布

Abstract: In consideration of inlet Mach number of the new generation aero-engine combustor rising continuously, and the demand of advanced combustor for airflow distribution and dome aerodynamics, a brand-new combustor distributor type diffuser was designed. Based on experiment,the total pressure loss throughout the diffuser changed along with mach number and area ratio was studied, and the impact on flow profile from the plates was obtained. The results show that the total pressure loss of distributor type diffuser is of 3.57% with Mach number 0.359, which means a proper loss throughout the diffuser.The flow uniformity in outlet of diffuser is good with the area ratio at 1.6~2.1,and the plate has an impact on flow and the inlet pressure. 

Key words: combustor; distributor type diffuser; experiment; total pressure loss; flow profile

李瀚,索建秦,梁红侠,黎明,刘强. 先进燃烧室分配器式扩压器实验研究[J]. 推进技术, 2013, 34(1): 88-94.

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