원심압축기용 베인디퓨져의 탈설계점 성능연구 - 제1부 : 채널디퓨져 -

Investigation of Off-Design Performance of Vaned Diffusers in Centrifugal Compressors - Part I : A Channel-Wedge Diffuser -

Experimental and numerical investigations of the off·design performance of a simple channel-wedge diffuser in a small centrifugal compressor are presented. Surge and choke conditions as well as design point are considered using somewhat limited range of experimental data and also supplementary 3D CFD results. Some critical meanline design parameters' behavior is investigated numerically, to render the basis for improved modelings in the meanline performance prediction.