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RISAn Evaluation Approach for the Stall Margin Enhancement With Stall Precursor Suppressed Casing Treatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is known that a kind of stall precursorsuppressed (SPS) casing treatment can be used to enhance compressor stall margin (SM) without recognizable efficiency loss. The further requirement in this regard is to develop an ...
Basic Studies of Flow Instability Inception in Axial Compressors Using Eigenvalue Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper applies a theoretical model developed recently to calculate the flowinstability inception of an axial transonic single stage compressor. After several calculation methods are compared, the singular value ...
Stall Inception Analysis of Transonic Compressors With Chordwise and Axial Sweep
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper concentrates on the stall inception analysis of transonic compressors with chordwise and axial sweep. A new prediction approach of stall inception is developed based on global stability analysis and immersed ...
Analysis Method of Compressor Stability Based on Eigenvalue Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to analyze the flow stability of compressors rapidly in the design stage, a fast analysis method is developed in this paper. This method takes the base flow on each streamline at different spanwise locations as ...
Effects of Radially Variable Sweep Vanes on Rotor–Stator Interaction Noise
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article presents a three-dimensional semianalytic cascade model for the prediction of rotor–stator interaction noise, which includes the effects of radially variable sweep angle and chord length to better account for ...
Calculation of Flow Instability Inception in High Speed Axial Compressors Based on an Eigenvalue Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper applies a theoretical model developed recently to calculate the flow instability inception point in axial high speed compressors system with tip clearance. After the mean flow field is computed by 3D steady ...
A Study of Three Dimensional Acoustic Scattering by Arbitrary Distribution Multibodies Using Extended Immersed Boundary Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A threedimensional computational model for acoustic scattering with complex geometries is presented, which employs the immersed boundary technique to deal with the effect of both hard and soft wall boundary conditions on ...
Further Investigation on Transonic Compressor Stall Margin Enhancement With Stall Precursor Suppressed Casing Treatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A kind of casing treatment, named as stall precursorsuppressed (SPS), has been developed recently, which was proved to be able to effectively improve stall margin (SM) without significant efficiency loss in lowspeed axial ...
Further Investigation on Acoustic Stall-Warning Approach in Compressors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A further investigation of an acoustic theory-based stall-warning approach is presented in this paper, which contains the basis of this approach and an application on a low-speed compressor (LSC) with a stabilization system. ...
Effect of RANS Method on the Stall Onset Prediction by an Eigenvalue Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The eigenvalue approach is a recently developed compressor stability model used to predict stall onset. In this model, the flow field from a Reynolds-averaged Navier–Stokes (RANS) simulation provides the basic flow. This ...