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RISOptimization Strategy for an Axial-Flow Compressor Using a Region-Segmentation Combining Surrogate Model
Publisher: American Society of Civil Engineers
Abstract: Axial-flow compressors work against varying inlet boundary layers in real working conditions and are therefore required to perform well and robustly. This paper presents a surrogate-based optimization procedure applied to ...
A Data-Driven Tip Flow Loss Prediction Method for a Transonic Fan Under Boundary Layer Ingesting Inflow Distortion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a boundary layer ingesting (BLI) propulsion system, the fan blades need to operate continuously under large-scale inflow distortion. The distortion will lead to serious aerodynamic losses in the fan, degrading the fan ...
Numerical Investigation on the Influences of Boundary Layer Ingestion on Tip Leakage Flow Structures and Losses in a Transonic Axial-Flow Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a boundary layer ingesting (BLI) propulsion system, the fan is continuously exposed to inflow distortions. The distorted inflows lead to nonuniform loss distributions along the radial and circumferential directions. ...
Forced Response Induced by Low Engine Order Under Circumferential Inlet Distortions With Different Extents
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Boundary-layer ingestion systems have the potential to improve propulsion efficiency using fluid with lower momentum near the airframe. However, they also bring variations in the velocity and total pressure, leading to a ...