Propagating Potential Disturbances in Turbomachinery
Abstract
This report documents the work performed at Notre Dame on attempting to acquire a clean set of phase-locked unsteady velocity data and concomitant unsteady pressure response for upstream-propagating potential disturbances interacting with a sharp-trailing-edged cascade vane in compressible, subsonic flow. The report documents the importance of the work and classifies the types of potential-disturbance interactions that can occur in a turbine engine. A case is made for the importance of the Notre Dame cascade approach, which allows for unambiguous interpretation of the data if the potential-disturbance sources are properly phased. The relationship of the Notre Dame cascade efforts to related work being conducted using a running F109 turbofan engine is described. The specially-designed cascade section is described along with a description of some of the preliminary results. Based on analysis of these results, a case is made for concentrating on a control method for phasing the potential-disturbance generators.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 02, 2002
- Accession Number
- ADA400117
Entities
People
- Eric J. Jumper
Organizations
- University of Notre Dame