キャビテーティング・ウォータジェットにおける衝突壁面近傍のキャビテーションクラウドの崩壊・衝撃の様相(流体工学,流体機械)

概要

論文の詳細を見る
It is known that ring-shaped cavitation clouds are formed when a cavitating water jet impinges on solid wall. The ring-shaped cavitation clouds cause ring-shaped erosion distribution. In this study, we use a confined channel in order to observe the two-dimensional view of cavitating jet. We observe the collapsing behaviors and formation process of cavitation clouds spreading on solid wall in order to directly connect the collapsing behavior of cavitation clouds with the erosion distribution. As a result, at least two types of bubble collapse behavior can be observed. The one is a collapse of cavitation clouds around jet center and the other is in the peripheral portion on the impinging wall.
社団法人日本機械学会の論文
2009-02-25