收稿日期: 2016-07-12
网络出版日期: 2025-05-28
基金资助
国家自然科学基金(50706021); 清华大学自主科研计划(2014Z05091)
Study on Ejection Performance of Micro-turbojet Engine
Received date: 2016-07-12
Online published: 2025-05-28
饶珠明 , 王兵 . 微型涡喷发动机引射特性研究[J]. 弹箭与制导学报, 2017 , 37(4) : 106 -108 . DOI: 10.15892/j.cnki.djzdxb.2017.04.025
Combined cycle engine was one of the important propulsion approaches to realize space-aeronautics integration. Injection was the key mode of the turbine-based combined cycle (TBCC) engine, and its actual operation process was very complicated. In order to analyze the characteristics of the ejection mode, based on CFD technology and ground-based experimental measurements, a micro-turbojet engine was used as the basic engine, the influence of the length, diameter and relative position of the ejector tube on ejection was studied. The conclusion had reference value for the design of TBCC ejection mode, and it provided references for the schemes of effective mixing and total pressure loss reduction.
Key words： injection; micro turbojet engine; TBCC; CFD
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