Application of the Multistage Axial-Flow Compressor Time-Dependent Mathematical Modeling Technique to the TF41-A-1 Modified (Block 76) Compressor

摘要

A one-dimensional, steady-state TF41-A-1 compressor mathematical model was developed for stability assessment with undisturbed flow, and a three-dimensional time-dependent TF41-A-1 compressor mathematical model for analysis of distorted inflows and transient and dynamic disturbances. Example problems and comparisons to experimental results are presented for both models. The problems using the one-dimensional, steady-state model consisted of determination of the steady-state stability limits (surge lines) with undisturbed flow for three distinct inlet guide vane schedules. Those problems using the three-dimensional, time-dependent model included determination of the stability limit (surge line) reduction caused by pure radial pressure inlet distortion, pure circumferential pressure, and pure circumferential temperature inlet distortion. The effects of rapid upward ramps of inlet temperature on compressor stability were also investigated. The TF41-A-1 compressor models computed the compressor stability limits with reasonable accuracy.