Effect of a Curved Duct Upstream on Performance of Small Centrifugal Compressors for Automobile Turbochargers

作     者：Shigeta Kikuchi Nobuhiko Yamasaki Akihiro Yamagata 

作者机构：Department of Aeronautics and Astronautics Kyushu University Products Development Center IHI Corporation 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2013年第22卷第1期

页      面：92-96页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：Cartesian grid cylindrical grid validation calculation 

摘      要：Since the automobile turbochargers are installed in an engine compartment with limited space, the ducts upstream of the turbocharger compressor may be curved in a complex manner. In the present paper, the effect of a curved duct upstream on performance of small centrifugal compressors for automobile turbochargers is discussed. The computational fluid dynamics (CFD) analysis of a turbocharger compressor validated for the compressor model with the straight pipe applied to the compressor with the curved pipe are executed, and the deterioration of the performance for the curved pipe is confirmed. It is also found that the deterioration of compressor performance is caused by the interaction of the secondary flow and the impeller.