Effect of blockage ratio on flow field and combustion characteristics in an integrated cavity-strut dual-mode ramjet combustor

Yijie Chang, Jinhe Liu, Luyang Han, Haifeng Zhao, Kaixing Wang, Fuqiang Liu, Yong Mu, Gang Xu, Institute of Engineering Thermophysics, Chinese Academy of Sciences, School of Space Exploration, University of Chinese Academy of Sciences, National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine, Qingdao Institute of Aeronautical Technology

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

Published online on July 29, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Ahead of Print.
Driven by the demand for wide-speed-range air-breathing propulsion, this study numerically investigates the effect of blockage ratio on the non-reacting flow field, fuel-air mixing, and combustion mode transition in an integrated cavity-strut dual-mode ...