A MODULAR PLATFORM FOR INTRUSIVE DIAGNOSTICS AND TPS TESTING IN THE ONR-UTA ARC-JET FACILITY

Abstract

This work presents an approach to the design, and successful experimental implementation, of a modular platform for intrusive diagnostics and TPS testing in the ONR-UTA Arc-Heated Wind Tunnel "Leste" Facility. The harsh conditions typical of arc-jet facilities (hypersonic, high-enthalpy, chemically-reacting, continuous flows) present a challenge to the design of insertion platforms. In this work a detailed analysis of the aerothermal loads is used to aid in the design process. Specific design points for this modular platform and its ancillary instrumentation have been identified. Based on this design approach, a modular platform for intrusive diagnostics and TPS testing has been developed. This platform features a multi-axis translating carriage and actively-cooled insertion arms for continuous arc-jet operation. It is capable of hosting a variety of intrusive test articles. This platform has been manufactured, integrated, and successfully tested in the ONR-UTA arc-jet "Leste" Facility.