|Table of Contents|

Performance analysis of rotating detonative airbreathing combined cycle engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2021年06期
Page:
86-92
Research Field:
专刊
Publishing date:

Info

Title:
Performance analysis of rotating detonative airbreathing combined cycle engine
Author(s):
JI Zifei1; LI Tianqi2; ZHANG Huiqiang2
(1. Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China 2. School of Aerospace Engineering,Tsinghua University,Beijing 100084,China)
Keywords:
rotating detonation detonative propulsion airbreathing combined cycle engine mode transition
PACS:
V439
DOI:
-
Abstract:
An over-under configuration of the rotating detonative airbreathing combined cycle engine is presented in this study. Two propulsion units are merged to achieve three different operating modes,which provides a favorable propulsion choice for advanced full range and trans-aerosphere hypersonic vehicles. Based on the steady state characteristics of turbine and ramjet units,a mode transition strategy with equal thrust and equal mass flowrate is proposed for the combined cycle engine,which further reveals the mode transition strategy and overall performance of the transition mode. The results indicate that the rotating detonation ramjet engine shows potential for improving the overall performance in low flight Mach number regime,and the rotating detonation turbojet engine shows potential for improving the overall performance in high flight Mach number regime. The higher the initial Mach number of mode transition,the lower the specific thrust and the higher the specific impulse during the transition mode.

References:

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Last Update: 1900-01-01