旋回キャビテーション発生下のインデューサ翼に作用する非定常流体力の解析 : 流体工学 , 流体機械

概要

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Rotating cavitation is one of the flow instabilities associated with cavitation, which has been a severe problem for the development of turbopumps of liquid rocket engines because of causing the destructive super-synchronous shaft vibration. Recently, it is argued that rotating cavitation might also induce large repetitive stresses on blades in accordance with the unsteady pressure due to the significant change of cavitating regions. This paper describes about the theoretical prediction of unsteady blade forces working on the cavitating inducer under rotating cavitation. Unsteady pressure distributions and a lift force for a 2-dimensitional flat plate cascade under rotating cavitation are calculated by the linearized free streamline theory based on the unsteady closed cavity model and singularity method.
社団法人日本機械学会の論文
2001-03-25