| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Outline of Final Research Achievements |
Unsteady phenomena and loss generation mechanism of axial-flow compressor off-design operation were investigated by detailed experiments and precise numerical simulations.Research attentions were focused on (1)unsteady flow field and cycle characteristics of co-existing state of surge and rotating stall, and (2)unsteady separated flow field and loss generation mechanism at windmill operation in high volume flow rate.
Experimental results showed that global characteristics of surge and rotating stall were found to be determined by the cascade flow structure during the surge cycle. On the other hand, unsteady numerical simulations revealed loss generation mechanism and structure of loss core developed in the rotor and/or stator cascades under the windmill operations.
|
