著者

阿部 達夫

出版者

東邦大学医学会

雑誌

東邦医学会雑誌 (ISSN:00408670)

巻号頁・発行日

vol.29, no.3, pp.p318-327, 1982-09

著者

阿部 達夫

出版者

永井書店

雑誌

綜合臨床 (ISSN:03711900)

巻号頁・発行日

vol.11, no.8, pp.1299-1301, 1962-08

著者

若松 徹雄 伊藤 綏 阿部 達夫 杉浦 愼治 里吉 營二郎

出版者

公益社団法人 日本栄養・食糧学会

雑誌

栄養と食糧 (ISSN:18838863)

巻号頁・発行日

vol.3, no.4-5, pp.190-197, 1951-02-05 (Released:2010-11-29)

参考文献数

27

著者

阿部 達夫

出版者

一般社団法人 日本航空宇宙学会

雑誌

日本航空宇宙学会誌 (ISSN:00214663)

巻号頁・発行日

vol.33, no.374, pp.173-181, 1985-03-05 (Released:2009-05-25)

参考文献数

4

---

The experimental study was conducted to determine the effects of the pressure distortion on the operation of a turbofan engine. The turbofan engine was tested with three kinds of inlet distortions, i.e., tip radial, circumferential and combined pressure distortions. The each distortion was generated with screens placed in the inlet ducting upstream of the fan face. Their intensity was varied by the screens with different porosity. This paper presents an investigating result of the evaluation method of the stability for the distortions and the experimental results of the effect on the two characteristics, pressure ratio and efficiency, of two stage axial flow fan and five stage axial flow compressor. The new method is to indicate two distortion indices on the orthogonal coordinate, the circumferential distortion index is related to the radial distortion index. This method led to the estimation that the examination of three kinds of the distortion seems to be enough to cover the total patterns of the distortion encountering inflight. The pressure ratio and the efficiency of a fan with distorted inflow decreased as compared with those of the clean inlet flow, however the operation line and the efficiency of a compressor hardly suffered from influence of the distortion.