Experimental study of formation and dynamics of cavitation bubbles and acoustic flows in NaCl, KCl water solutions

5th International Conference New Achievements in Materials and Environmental Science

材料科学;生态环境科学

Rybkin, K.A.^1 ; Bratukhin, Yu.K.^1 ; Lyubimova, T.P.^1,2 ; Fatallov, O.^1,2 ; Filippov, L.O.^3

Perm State University, Perm, Russia^1

Institute of Continuous Media Mechanics, Perm, Russia^2

Universite de Lorraine, Nancy, France^3

关键词: Average diameter;    Cavitation bubble;    Distilled water;    Inertial cavitation;    Mass concentration;    Stable clusters;    Ultrasound sources;    Water solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/879/1/012026/pdf
DOI  :  10.1088/1742-6596/879/1/012026

来源: IOP

【 摘 要 】

The acoustic flows and the phenomena associated with them arising under the action of ultrasound of different power on distilled water and aqueous solutions of a mixture of NaCl and KCl salts of various concentrations are studied experimentally. It is found that in the distilled water, under the action of ultrasound, the appearance of inertial and non-inertial cavitation bubbles takes place, then the formation of stable clusters, the distance between which depends on the power of the ultrasound source is observed. Experiments show that an increase in the mass concentration of salts in water leads to the decrease in the average diameter of the arising inertial cavitation bubbles and to the gradual decrease in their number, up to an almost complete disappearance at nearly 13% of the concentration of the salt mixture in the water.