遠心圧縮機の吐き出し管内の低流量時の圧力変動の周期性に関する研究 (<小特集>タ-ボ機械の内部流れと定常・否定常特性)

概要

論文の詳細を見る
In this study, the a posteriori approach was used for the analysis of unsteady flow in a centrifugal compressor at lower flow rate as opposed to the a priori approach used for lumped parameter models. The derivatives of the pressure fluctuations obtained experimentally which were computed by a noise-free numerical differentiation, were used to obtain the phase diagrams. After ordinary differential equations were constructed to model the dynamics of the system behavior, they were numerically analyzed. The phase diagrams by the derivatives showed complex trajectories at first glance. However, by using a band pass filter for the pressure fluctuations, it was found that the phase diagrams consisted of three independent wave forms and formed one of the tori.
一般社団法人日本機械学会の論文
1995-11-25