Instrumentation Package for High-Speed Compressor Research
Abstract
The cost and capabilities of future, advanced military aero-propulsion systems are enabled by continued increases in turbomachinery performance. The fan and compressor sections, for example, are improving with each generation of engine design due to new research and technology. The compressor pressure ratio, efficiency, aeromechanical stability, and weight are all closely coupled design constraints that require detailed understanding of the flow physics for continued optimization. The present proposal describes new instrumentation for a compressor research facility. The test rig is a single-stage compressor that rotates at 27,000RPM. The test article is a modern compressor design similar to those used in current military applications. The added instrumentation will enable new discoveries in transonic flow physics as well as a new level of accuracy and precision for aerodynamic performance.The new equipment will include Laser Doppler Velocimetry (LDV), unsteady pressure, and performance upgrade systems. The LDV system will include new, miniaturized sensors that are ideal for working in a small, harsh environment with limited optical access. The measurements will be applied in regions throughout the stage as well as in casing treatment flows. The unsteady pressure system will allow for detailed understanding of the pressure field using high-response, low-noise transducers and signal conditioning. Lastly, a high-accuracy thermocouple system will be acquired along with temperature-compensation improvements for stage torque measurements.These, in combination, will provide the minimum possible errors in performance and efficiency measurements.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 10, 2018
- Source ID
- N000141812326
Entities
People
- Joshua Cameron
Organizations
- Office of Naval Research
- United States Navy
- University of Notre Dame