High Speed Diagnostics using Chemiluminescence Thermometry in a Shock Tube

This study focuses on the investigation of the diagnostic abilities for detonations in low- density, high-speed, gas-phase flows using background oriented schlieren imaging and high- pressure monitoring devices. A detonation driven shock tube was designed to generate the desired flow conditions as it can provide reliable high-speed detonations at repeatable conditions. The shock tube allowed for the diagnostic systems to be tested at various initial low-pressure conditions. A high-speed camera was placed at the exit of the shock tube in order to take background oriented schlieren images and subsequently analyze the density of the high-speed flows leaving the detonation tube. Additionally, the shock tube was designed with two high frequency pressure transducer ports that allow for the pressure within the detonation tube to be monitored during and after detonations. The pressure measurements allowed for the detonation time and shock location to be monitored and tracked and may allow for further diagnostic tool integration.