Journal of Shenyang Aerospace University >
Influence of intake pressure loss on starting characteristics of core engine
Received date: 2024-05-25
Online published: 2025-02-05
A specialized verification test for starting characteristics was carried out to investigate the influence of intake pressure loss on starting characteristics of core engine.A pressure stabilizing system was installed in front of the inlet to simulate the generation of intake pressure loss and the starting cha-racteristics of the core engine were recorded.For comparison,the starting characteristics of the core engine were also recorded without installing the pressure stabilizing system.After the experiment,the influence of intake pressure loss on starting characteristics was obtained,and the reasons for intake pre-ssure loss caused by the pressure stabilizing system,along with the calculation method for intake pre-ssure loss were studied.The results show that intake pressure loss reduces the speed rising ratio during the starting process,hurting the starting.The reasons for flow loss in different components of the pre-ssure stabilizing system are different,and various optimization methods for the different components can be used to reduce the pressure loss,such as improving the roughness of the rectifier network and the honeycomb,as well as selecting the diffusion angle of the diffuser section reasonably.
Jinhui CUI , Yujia YAN , Hongbo YUAN , Yuzhao ZHOU , Shaozhuo CHANG . Influence of intake pressure loss on starting characteristics of core engine[J]. Journal of Shenyang Aerospace University, 2024 , 41(6) : 20 -26 . DOI: 10.3969/j.issn.2095-1248.2024.06.003
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