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      Near-surface dynamics of a gas bubble collapsing above a crevice

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      Journal of Fluid Mechanics
      Cambridge University Press (CUP)

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          Abstract

          The impact of a collapsing gas bubble above rigid, notched walls is considered. Such surface crevices and imperfections often function as bubble nucleation sites, and thus have a direct relation to cavitation-induced erosion and damage structures. A generic configuration is investigated numerically using a second-order accurate compressible multi-component flow solver in a two-dimensional axisymmetric coordinate system. Results show that the crevice geometry has a significant effect on the collapse dynamics, jet formation, subsequent wave dynamics and interactions. The wall-pressure distribution associated with erosion potential is a direct consequence of development and intensity of these flow phenomena.

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          VIII.On the pressure developed in a liquid during the collapse of a spherical cavity

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            Cavitation erosion by single laser-produced bubbles

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              Collapse of an initially spherical vapour cavity in the neighbourhood of a solid boundary

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                Journal
                Journal of Fluid Mechanics
                J. Fluid Mech.
                Cambridge University Press (CUP)
                0022-1120
                1469-7645
                September 25 2020
                July 21 2020
                September 25 2020
                : 899
                Article
                10.1017/jfm.2020.432
                6cdc3e26-5ed5-4614-97e6-d932d2a851be
                © 2020

                https://www.cambridge.org/core/terms

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