20.500.12556/RUL-156085 Cavitation and jetting from shock wave refocusing near convex liquid surfaces We study the physical mechanisms behind the ejection of a liquid jet from a curved free surface, specifically a free-falling water drop. The jet is produced after a spherical shock wave emitted from a micro-explosion created by a focused laser pulse is refocused on the opposite side of its source. The analysis of high-speed videos of the liquid jet formation revealed that it originates from a larger, prolate cavitation bubble created by the strong tension produced after the reflection of the original wave on the air–liquid interface. The shock wave propagation and jet formation are modeled separately with finite volume simulations in OpenFOAM. Initially we study the pressure evolution inside the drop by comparing the numerical simulations with the distribution of bubbles nucleated after the passage of the negative pressure wave. The jet formation dynamics is explained by comparing the experiments with numerical results. The jet velocity is higher if the laser focus is closer to the drop surface. shock waves cavitation computational fluid dynamics udarni valovi računalniška dinamika tekočin kavitacija true false true Angleški jezik Slovenski jezik Članek v reviji 2024-05-07 14:45:05 2024-05-07 14:45:07 2024-05-08 04:01:31 0000-00-00 00:00:00 2024 0 0 5 str. Vol. 175, art. 104822 May 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.528 1879-3533 10.1016/j.ijmultiphaseflow.2024.104822 194651651 Reese,__Ohl,__Rosselló-Cavitation_and_jetting_from_shock_wave_refocusing_near_convex_liquid_surfaces.pdf Reese,__Ohl,__Rosselló-Cavitation_and_jetting_from_shock_wave_refocusing_near_convex_liquid_surfaces.pdf 1 2F6B4AB5C2B762B15E04E3E1868CBA2A 1780fbaec4ca591095dc5ff7b4131120c6c0198edb5688c208f89b18cb948c42 11b15fd9-0c70-11ef-a791-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=183316 https://www.sciencedirect.com/science/article/pii/S0301932224001022 1 a32a6e9c-0c6f-11ef-a791-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=183315 Fakulteta za strojništvo 0 0 0