A Post-Stall Compression System Modeling Technique

Abstract : This report presents a one dimenstional, stage by stage compression system modeling technique capable of exhibiting post stall behavior such as surge and rotating stall. Included is a brief overview of previous efforts by others, their major contributions and how the present effort enhances and extends these efforts. The modeling techniques, governing equations, numerical simulation, and stability criteria are all discussed. The model is validated by comparing it with a multitude of experimental test results from low-speed and high-speed compressor rigs and engine test results. The model provides an analysis tool for analyzing compression system and individual stage behavior during surge and rotating stall. Because the modeling technique is based upon stage characteristics, stage modifications can be analyzed for their affect on recoverability. Keywords: gas turbine engines; compression systems; component performance; rotating stall; surge; mathematical modeling.

[1]  Gino Moretti,et al.  Importance of Boundary Conditions in the Numerical Treatment of Hyperbolic Equations , 1969 .

[2]  Gordon C Oates,et al.  The Aerothermodynamics of Aircraft Gas Turbine Engines , 1978 .

[3]  F. Moore,et al.  A Theory of Post-Stall Transients in Axial Compression Systems: Part II—Application , 1986 .

[4]  L. E. Olson,et al.  Numerical solution of the time-dependent compressible Navier-Stokes equations in inlet regions , 1974 .

[5]  E. Greitzer.  Review—Axial Compressor Stall Phenomena , 1980 .

[6]  A. Burwell,et al.  Dynamic engine behavior during post surge operation of a turbofan engine , 1985 .

[7]  L. M. Wenzel,et al.  Analytical investigation of nonrecoverable stall , 1982 .

[8]  K. Chung,et al.  A turbine engine aerodynamic model for in-stall transient simulation , 1985 .

[9]  W. G. Steenken,et al.  Blade row dynamic digital compressor program. Volume 1: J85 clean inlet flow and parallel compressor models , 1976 .

[10]  W. G. Steenken,et al.  Aerodynamic instability performance of an advanced high-pressure-ratio compression component , 1986 .

[11]  Milt Davis.  A Stage-by-Stage Dual-Spool Compression System Modeling Technique , 1982 .

[12]  Edward M. Greitzer,et al.  Surge and Rotating Stall in Axial Flow Compressors—Part I: Theoretical Compression System Model , 1976 .

[13]  J. French.  Modeling post-stall operation of aircraft gas turbine engines , 1985 .

[14]  Edward M. Greitzer,et al.  Surge and Rotating Stall in Axial Flow Compressors—Part II: Experimental Results and Comparison With Theory , 1976 .

[15]  K. Seldner,et al.  Generalized simulation technique for turbojet engine system analysis , 1972 .

[16]  F. K. Moore.  A theory of rotating stall of multistage axial compressors , 1983 .

[17]  W. F. O’Brien,et al.  A Model for Dynamic Loss Response in Axial-Flow Compressors , 1981 .

[18]  Michael Abbett.  BOUNDARY CONDITION CALCULATION PROCEDURES FOR INVISCID SUPERSONIC FLOW FIELDS , 1973 .

[19]  Saburo Nagano.  Nonlinear Analysis of Rotating Stall , 1970 .

[20]  R. R. Moritz.  Axial compressor stall , 1970 .

[21]  W. Hosny,et al.  Turbofan-engine nonrecoverable stall computer-simulation developmentand validation , 1985 .

[22]  William F Kimzey.  An Analysis of the Influence of some External Disturbances on the Aerodynamic Stability of Turbine Engine Axial Flow Fans and Compressors , 1977 .

[23]  K. Seldner,et al.  Multistage compressor simulation applied to the prediction of axial flow instabilities , 1969 .

[24]  F. Moore,et al.  A Theory of Post-Stall Transients in Axial Compression Systems: Part I—Development of Equations , 1986 .

[25]  W. Obrien,et al.  Axial-flow compressor stage post-stall analysis , 1985 .