CFD Simulation of Pulsation Noise in a Small Centrifugal Compressor with Volute and Resonance Tube  

作　　者：Daich Wakaki Yuta Sakuka Yuzo Inokuchi Kosuke Ueda Nobuhiko Yamasaki Akihiro Yamagata 

机构地区：[1]Kyushu University [2]IHI Corporation

出　　处：《Journal of Thermal Science》2015年第1期24-29,共6页热科学学报（英文版）

摘　　要：The rotational frequency tone noise emitted from the automobile turbocharger is called the pulsation noise. The cause of the pulsation noise is not fully understood, but is considered to be due to some manufacturing errors, which is called the mistuning. The effects of the mistuning of the impeller blade on the noise field inside the flow passage of the compressor are numerically investigated. Here, the flow passage includes the volute and duct located downstream of the compressor impeller. Our numerical approach is found to successfully capture the wavelength of the pulsation noise at given rotational speeds by the comparison with the experiments. One of the significant findings is that the noise field of the pulsation noise in the duct is highly one-dimensional although the flow fields are highly three-dimensional.

关 键 词：Pulsation Tone Noise CFD URANS Centrifugal Compressor TURBOCHARGER VOLUTE 

分 类 号：TH452[机械工程—机械制造及自动化] U469.11[机械工程—车辆工程]