ケーシングトリートメントの失速マージン改善機構に関する研究 : 第2報,翼列出口および翼間における全圧分布の計測結果と考察

概要

論文の詳細を見る
An experimental study has been carried out to clarify the mechanism of stall margin improvement of casing treatment. The previous study revealed that the two-dimensional theory combined with experimentally obtained total-pressure-loss characteristics can predict with accuracy the onset of rotating stall for all compressor arrangements with and without a few types of casing treatment. In this study, two low-speed compressors were used to measure total pressure distributions down-stream of the rotor as well as within the blade passage. The behavior of the low-total-pressure fluid originating from the tip clearance leakage and the high-total-pressure fluid ejected from the treatment slots are discussed. Based on the experiment, a flow mechanism in which the casing treatment improves the total-pressure-loss characteristics of the rotors and thus improves the stall margin of the compressor was proposed.
一般社団法人日本機械学会の論文
1989-10-25