J0101-1-4 単段圧縮機におけるサンド***ージョンの数値予測(エネルギーと環境問題におけるマルチフィジィックスCFDシミュレーション(1))

概要

論文の詳細を見る
Our research group has proposed a numerical method for supercritical fluids; Sand erosion is a phenomenon whereby solid particles impinging on a wall cause serious mechanical damage to the wall surface. This phenomenon is a typical gas-solid two-phase turbulent flow and can be considered as a multi-physics problem in which the flow field, particle trajectory, and wall deformation interact. On the other hand, aircraft engines operating in a particulate environment are subjected to the performance and lifetime deterioration due to sand erosion. Especially, the compressor of the aircraft engines is severely damaged. In the present study, we apply our three dimensional sand erosion prediction code to a single stage axial flow compressor. We numerically investigate the change of the flow field, the particle trajectories, and the eroded wall shape in the compressor, to clarify the effects of sand erosion in the compressor.
社団法人日本機械学会の論文
2009-09-12