TS-43 Unsteady Flow Phenomena in a Three Stage Axial Compressor with Controlled Diffusion Airfoils(Session B-6: Unsteady Flow 3)

概要

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In the field of multistage compressor development remarkable effort is spent on the achievement of higher efficiencies and wider operating ranges. In order to consider all relevant aspects of the highly complex three-dimensional flow within the design process, especially viscous and unsteady flow phenomena, highly sophisticated and well-calibrated design tools are essential. The development of reliable design tools however, requires detailed experimental data of all relevant flow phenomena in adequate multistage components. This paper reports on detailed measurements in a three stage, high speed axial compressor equipped with inlet guide vanes and modern compressor blading (CDA). All airfoils are designed by an inverse method. At design conditions the corrected compressor speed is 17000RPM, the corrected mass flow is 13.4kg/s, and the overall total pressure ratio is 2.03. The objective is to examine the flow field in detail, with emphasis on 3D viscous and unsteady flow phenomena. Therefore, the compressor is instrumented with various state of the art measurement devices, and data are collected with high resolution in space and time.
公益社団法人日本ガスタービン学会の論文
1999-11-14