Heat flux measurement method and experimental research in SRM

A series of aluminized solid propellant combustion tests were carried out by using an innovatively designed instrument for heat flux measurement. The total heat flux of two-phase flow has been obtained under condition of changing the content of aluminum, altering eroding velocity and incidence angle of the combustion products. Experiments proved that the device was able to endure the harsh condition inside the engine and the test results coincided with theoretical analysis fairly. Heat-flux through the experimental measurements would provide the essential data for ablation of insulation and check the accuracy of numerical simulation of heat transfer between combustion products and the chamber. This instrument and test method provided a good exploratory development for heat-flux measurement in SRM and a foundation of further experiments under condition of two-phase flow impingement.