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Direct numerical simulation of heterogeneous bubble nucleation

M Saini S Zaleski Daniel Fuster 1 
1 IJLRDA-FRT - Fluides Réactifs et Turbulence
DALEMBERT - Institut Jean le Rond d'Alembert
Abstract : In this work we numerically simulate the expansion of preexisting bubbles, typically known as heterogeneous nucleation. We use this to predict nucleation thresholds for single bubble attached to walls and study the dependency of this threshold on the solid surface properties. To that end we modify the boundary conditions at the wall to demonstrate the critical effect of two limiting boundary conditions to correctly predict the nucleation threshold of bubbles: a) The contact point is receding freely at a constant angle of contact b) The contact point is pinned at particular location and cannot move due to obstruction. The understanding of heterogeneous bubble nucleation is very important to devise techniques of well controlled cavitation for biomedical applications such as histotripsy, lithotripsy etc.
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https://hal.archives-ouvertes.fr/hal-03418953
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Submitted on : Monday, November 8, 2021 - 11:05:53 AM
Last modification on : Tuesday, November 16, 2021 - 4:31:25 AM
Long-term archiving on: : Wednesday, February 9, 2022 - 7:46:44 PM

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  • HAL Id : hal-03418953, version 1

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M Saini, S Zaleski, Daniel Fuster. Direct numerical simulation of heterogeneous bubble nucleation. 11th International Cavitation Symposium (CAV2021), 2021., May 2021, Daejeon, South Korea. ⟨hal-03418953⟩

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