Features of Rotating Stall Cell in a Diagonal Flow Fan(in Case of Mid-loading Rotor)

• 来源期刊: 热科学学报（英文版）
• 学科: 工学
• 年，卷（期）: 2006,（2）
• 页码范围: 103-108
• 页数: 6页
• 分类号: TH432.2
• 语种: 英文

摘要

The structure and behavior of rotating stall cell were experimentally clarified in a diagonal flow fan. The specific-speed of the fan was 1140 (r/min, m3/min, m), and the total pressure-rise coefficient at design flow-rate was 0.345. The static pressure on outer casing wall and the total pressure at rotor inlet and outlet were measured using a high response pressure transducer. The measured data were processed by the use of DPLA technique, and the structure and behavior of rotating stall cell were obtained. As a result, the stall cell extent for circumferential and spanwise direction and the pressure distributions inside stall cell were clarified. The details of stall cell propagation were also shown.