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RISPoststall Behavior of a Multistage High Speed Compressor at Off-Design Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stall followed by surge in a high speed compressor can lead to violent disruption of flow, damage to the blade structures and, eventually, engine shutdown. Knowledge of unsteady blade loading during such events is crucial ...
Flow Physics During Surge and Recovery of a Multi-Stage High-Speed Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stall followed by surge in a high-speed compressor can lead to violent disruption of the flow, damage to the blade structures and eventually engine shutdown. Knowledge of unsteady blade loading during surge is crucial for ...
Validation of a Numerical Model for Predicting Stalled Flows in a Low-Speed Fan—Part II: Unsteady Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the flow near the stall boundary for a low-speed/low-pressure ratio fan. Three-dimensional, Reynolds-averaged Navier–Stokes computations are performed for a modern low speed fan rig for which extensive ...
Deficiencies in the Spalart–Allmaras Turbulence Model for the Prediction of the Stability Boundary in Highly Loaded Compressors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reynolds-averaged Navier–Stokes (RANS) equations are employed for aerodynamic and aeroelastic modeling in axial compressors. Their solutions are highly dependent on the turbulence models for closure. The main objective of ...
Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compressor surge imposes a limit on aero-engine operability and can compromise integrity because of significant aerodynamic loads imparted on the engine components. The aim of this article is to use 3D unsteady computational ...