Rocket engine boundary layer temperature measurements using Coherent Anti-Stokes Raman Spectroscopy (CARS)

We propose to design, build, and install a Coherent Anti-Stokes Raman Spectroscopy (CARS) system for boundary layer temperature measurements on an existing combustion test stand at Edwards AFB. CARS is an non-intrusive, in-situ laser-based combustion diagnostic for spatially and temporally resolved temperature measurements in reacting flows. Under Phase-I we will design the complete CARS system specific to the needs and requirements of AFRL/PRSA. OKSI will design, manufacture, and deliver a modular test section compatible to the existing test stand at Edwards. In addition, we will demonstrate CARS temperature measurements through a geometrically equivalent test section using an existing operating CARS system as a proof of concept. Under Phase-II we will assemble and install the system and demonstrate boundary layer temperature measurements in the operating combustor at the Edwards AFB test facility.