Quasi one-dimensional modeling and analysis of scramjet combustor

To study the change regularity of airflow in the combustor of scramjet engine, the influence coefficient method was used to mode the quasi one-dimensional model of scramjet combustor, which contained some influence factors such as fuel quality flow, wall heat transfer, cross-sectional variation and wall friction. The conversion boundary conditions of the three modes of the combustor were also presented in this work. A single-module scramjet engine was taken as study object. The effects of fuel equivalent ratio and attack angle on airflow parameters were simulated under scramjet modes without shock-wave and with oblique shock-wave. The presented model provides a method of the overall design of scramjet engine and performance analysis.