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2008年 第3卷 第4期

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《机械工程前沿（英文）》 >> 2008年 第3卷 第4期 doi: 10.1007/s11465-008-0073-7

Experiment and surge analysis of centrifugal two-stage turbocharging system

1.School of Mechatronics & Automotive Engineering, Chongqing Jiaotong University; 2.School of Mechanical and Vehicular Engineering, Beijing Institute of Technology;

发布日期： 2008-12-05
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摘要

To study a centrifugal two-stage turbocharging system’s surge and influencing factors, a special test bench was set up and the system surge test was performed. The test results indicate that the measured parameters such as air mass flow and rotation speed of a high pressure (HP) stage compressor can be converted into corrected parameters under a standard condition according to the Mach number similarity criterion, because the air flow in a HP stage compressor has entered the Reynolds number () auto-modeling range. Accordingly, the reasons leading to a two-stage turbocharging system’s surge can be analyzed according to the corrected mass flow characteristic maps and actual operating conditions of HP and low pressure (LP) stage compressors.

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