G501 はく離流れにおける水のキャビテーション初生の観察(2)(GS5 キャビテーション,剥離,一般セッション)

概要

論文の詳細を見る
The present authors have conducted observations of separating oil flows for years and have discovered a phenomenon that an infinitesimal cavity suddenly emerges on the wall close to the point of separation. The new-born cavity grows and splits releasing a lot of minute bubbles to downstream. The present paper intends to answer the following question presumably given to the discovery by traditional cavitation researchers dealing with water flow; does the same phenomenon occur in water flows with separation? Through observations of water flows in rectangular and cylindrical constrictions using a super-high speed video camera and a long distance microscope, it has been confirmed that a cavity is suddenly born near the separation point in water flows as well. In other words, the same mechanism of cavity generation at the point of separation commonly exists both in water flows and oil ones.
一般社団法人日本機械学会の論文
2007-11-17