Journal of Propulsion Technology ›› 2012, Vol. 33 ›› Issue (5): 665-670.

• Aero-thermodynamics •     Next Articles

Calculating Performance of Pulse Detonation Turbo Engine

  

  1. 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

脉冲爆震涡轮发动机性能计算

何龙,郑龙席,邱华,严传俊   

  1. 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
  • 作者简介:何龙(1987—),男,硕士生,研究领域为脉冲爆震涡轮发动机性能计算与实验。E-mail:longxinghubu@126.com
  • 基金资助:
    国家自然科学基金(50906072)。

Abstract: Calculating performance of PDTE can provide important data for design and further experiment. Based on the theory of ZND detonation wave and cycle analysis,a model (ZND cycle analysis method, model-1) to calculate the performance of PDTE was established.The model and former thrust wall model (model-2) with PDC characteristic chart method (model-3) was compared. And using the three models the design point performance of a PDTE was calculated. The result shows that, compared with model-2 the error of specific thrust (FS) by using model-1 reduces 1.75%. And the error of specific fuel consumption (sfc) reduces 4.04%. Thus model-1 is more precise than model-2. Compared with model-3 which need more experiment data the method-1 is more convenient. This model can be used to fast evaluate the performance of PDTE.The change of performance gain of PDTE was calculated with the change of flight state. 

Key words: Pulse Detonation Turbo Engine; Pulse Detonation Combustor;Performance;Computation

摘要: 建立了一种基于爆震波ZND理论和循环分析的PDTE性能计算模型-ZND循环分析模型(模型-1)。将该模型及目前已有的推力壁模型(模型-2)分别与基于实验的PDC特性图模型(模型-3)进行对比,计算了模型PDTE的设计点性能,结果表明:模型-1计算得到的PDTE单位推力(FS)及单位燃油消耗率(sfc)的计算误差较模型-2分别减小了1.75%和4.04%,准确性有所提高。与需要大量实验数据的模型-3相比较,模型-1更简便,可用于PDTE性能的快速评估。应用模型-1计算了飞行状态改变时PDTE性能增益的变化趋势。

关键词: 脉冲爆震涡轮发动机;脉冲爆震燃烧室;性能;计算