水-グリセリン溶液中におけるレーザ生成気泡の挙動に関する研究

概要

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An experimental study was conducted on the behavior of cavitation bubbles in water-glycerol solutions. A bubble was produced by focusing a Q-switched ruby laser into a solution, and the subsequent bubble behavior was observed by means of an Imacon high speed camera. Consequently, the relation between the characteristics of the bubble motion and the concentration of the solution was made clear. The results obtained here were summarized as follows : The oscillatory period of the motion of a bubble in a pure glycerol was 10-25% longer than that in water. In the case of 85 percent water-glycerol solution by weight, the damping in the bubble oscillation is around minimum due to the effect superimposing the compressibility and viscosity of the liquid. When a bubble behaves in the neighborhood of a solid wall in a highly viscous solution, not only the radial motion but also translational one was suppressed.
一般社団法人日本機械学会の論文
1990-12-25