Estimation of chemical and physical effects of cavitation by analysis of cavitating single bubble dynamics

Abstract

Graphical abstract

Removal of single and dual ring thiophene’s from dodecane using cavitation based processes

“…Despite these differences, main characteristics of cavity collapse and resulting generation of intense shear and oxidising radicals are not qualitatively different. Recently Pandit et al [25] have used detailed cavity dynamics models to quantify influence of pressure fluctuations and frequency on cavitation effects spanning the range used for AC and HC. It can be seen from their results that effective shear and oxidising radicals for the two can be comparable under certain conditions.…”

Acoustic Analysis of Vortex-based Cavitation Devices: Inception and extent of cavitation

“…The generated cavities collapse when they travel to high-pressure regions and experience turbulent pressure fluctuations. The collapse of cavities leads to significant noise, shear, , and localized hot spots . The simplest method to detect cavitation is a visual method provided that the cavitation devices and associated piping are transparent. , More sophisticated visual techniques such as high-speed imaging, light-scattering methods, and particle imaging velocimetry have also been used.…”

Fundamentals, biomedical applications and future potential of micro-scale cavitation-a review

“…In some studies, RP model was extended to account for hydroxyl radicals (OH) production during the bubble collapse, either by coupling chemical kinetics models with single bubble dynamics 118 or by using the minimization of Gibbs free energy (MGFE) method. 119 The assumption of bubble collapse in a spherically symmetric fashion is violated in the presence of an asymmetric source such as air/water interfaces or wall. Under this condition, phenomena like formation of high velocity jets and crowns 120 as well as complex spatiotemporal distribution of the wall shear stress during the bubble collapse 121 cannot be captured by one dimensional spherically symmetric model.…”

“…In some studies, RP model was extended to account for hydroxyl radicals (OH) production during the bubble collapse, either by coupling chemical kinetics models with single bubble dynamics 118 or by using the minimization of Gibbs free energy (MGFE) method. 119…”