Abstract—

The features of the impact of acoustic flow and cavitation created by a traveling ultrasonic wave, which can be used for efficient dissolution of a metal oxide powder, are considered. On the basis of a simplified scheme, which, nevertheless, takes into account all the essential features of the phenomenon under study, exact expressions are obtained for all parameters of stationary vortex motion and cavitation, which fully meet the requirements for proper control of the reaction course. Equations are derived that describe the dissolution kinetics for two typical regimes: developed cavitation and pre-cavitation state. Expressions are found for the time to completion of the process. On the example of these two most typical types of reaction, the conditions are formulated under which it will be possible to fully satisfy the solution of the technological challenges. The methods for the optimal application of the ultrasonic dissolution scheme are presented and those features of its formation that make it possible to control the process are noted. The performed calculations make it possible to select and accurately implement the scheme of acoustic stimulation of dissolution which best corresponds to the expected output results and other processing features.

中文翻译：

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空化区域和埃卡特声流不同空间组合的金属氧化物粉末超声溶解动力学

摘要——

考虑了行进超声波产生的声流和空化的影响特征，可用于有效溶解金属氧化物粉末。在简化方案的基础上，考虑到所研究现象的所有基本特征，得到了静止涡流运动和空化所有参数的精确表达式，完全满足了正确控制反应的要求课程。推导出的方程描述了两种典型状态的溶解动力学：发达的空化状态和预空化状态。找到完成该过程所需的时间的表达式。以这两种最典型的反应类型为例，制定了能够充分解决技术挑战的条件。介绍了超声波溶解方案的最佳应用方法，并指出了其形成的那些使控制过程成为可能的特征。所执行的计算使得可以选择并准确地实施最符合预期输出结果和其他处理特征的声学刺激溶解方案。