Abstract
The features of the fluid compression in a vapor bubble during its collapse in cold (273 K) and cool (293 K) acetone are studied. The liquid pressure \(p_{0}\) is varied in the range 0.12–5 bar. The full hydrodynamic model is used in vapor and liquid. The non-stationary heat conductivity of both fluids and non-equilibrium mass transfer across the bubble surface are taken into account. Realistic wide-range equations of state are applied. It is shown that as the liquid pressure \(p_{0}\) is diminished, the depth of the bubble collapse decreases in cold acetone, but grows in cool acetone. The maximum of the collapse rate decreases monotonically in cool acetone. In cold acetone it is reduced only in an interval bounded by a certain value of \(p_{0}\), and then it increases. As a result, with decreasing \(p_{0}\) of cool acetone, the vapor in the bubble is compressed first by radially convergent shock waves, then by isentropic waves, and after that its nearly uniform compression takes place, whereas only the first scenario is realized in cold acetone.
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(Submitted by D. A. Gubaidullin)
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Toporkov, D.Y. Influence of Liquid Pressure on the Collapse of a Vapor Bubble in Cold and Cool Acetone. Lobachevskii J Math 42, 2226–2231 (2021). https://doi.org/10.1134/S1995080221090274
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DOI: https://doi.org/10.1134/S1995080221090274