| Abstract | A literature review has been conducted to assess the current state of research of gas turbine engine compressor fault mechanisms, including experimental research and analytical modelling. Special attention was paid to blade tip clearance, surface roughness, and leading edge thickness faults.
Experimental and analytical results from the literature will be incorporated into NRC compressor models to be used for engine health monitoring of gas turbine engines. Thus, one-dimensional, analytical methods of compressor performance prediction also were reviewed to compare with the stage stacking models currently available to the Engine Laboratory. In conjunction with these methods, other loss correlations for compressor modelling were identified. Recommendations were made for further performance prediction modelling improvements.
To determine separate and combined effects of the faults for implementation into engine health monitoring data bases, and verification of prediction codes, recommendations were made concerning future research directions for compressor fault testing. These recommendations include compressor rig and complete engine system testing. |
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