PRESSURE MEASUREMENTS IN ROTATING DETONATION ENGINES

Abstract

The use of Rotating Detonation Engines (RDEs) is a promising way to efficiently convert the chemical energy of fuel into the mechanical energy for propulsion. The values of local pressure in the RDEs are the most important indicators of the operation process efficiency. Pressure sensors in RDEs are exposed to high temperatures ( 3000 K) and pressures (10 MPa), as well as mechanical vibrations. Therefore, the duration of test fires of RDEs with pressure sensors mounted directly in the RDE walls is usually very short (from tenths of a second to several seconds) to avoid sensors£ destruction.