クラ-クY11.7%翼形に発生するキャビテーション気泡の2方向よりの同時観察

概要

論文の詳細を見る
To clarify more precisely the mechanism of a multitudinous constitution of cavitation, the processes whereby a flowing-in nucleous grows and shifts into an arbitrary type of cavitation bubble are investigated carefully in a typical external flow around a Clark-Y 11.7 hydrofoil by using the technique of high speed photographing simultaneously from two sides, under a prescribed cavitation nuclei as well as various hydrodynamic conditions. The processes depend strongly on the place where a nucleous flows in and attaches to the hydrofoil surface. in practice, except for the so-called attached cavitation, there are deviations from sphericality due to the flowing-in conditions and each nucleous develops simultaneously into each individual type of bubble, e.g., spherical-, hemispherical-, concaved-, patched- and torus bubble. The torus bubble has a dent which seem to generate a microjet.
社団法人日本機械学会の論文
1988-04-25