20.500.12556/RUL-159211 Laser induced microbubbles as an alternative driver for liquid pumping The laser induced cavitation bubble, which collapses near a rigid boundary with a hole on a microscale is investigated for liquid pumping applications. The generated bubble and the hole have a comparable size on a scale of 100 μm. The dynamics of the process are visually tracked near the hole and through the hole. This is made possible by the translucent 3D-printed boundary. The main measurable quantities are the bubble oscillation times and the bubble movement. For the latter, we show that it follows the power law of the Kelvin impulse for the rigid boundary without a hole for small standoff distances up to the moment when the bubble touches the edge of the hole. Further, it was found that the bubble standoff distance has a negligible influence on the first oscillation time, while it increases by almost a factor of two for the second oscillation. During the second oscillation, the bubble enters the hole and displaces all the liquid in the direction of bubble propagation. This indicates a second pumping driver beside the jet produced during the collapse of the primary bubble. laser induced cavitation micro pumping rigid boundary bubble dynamics lasersko povzročena kavitacija mikročrpanje trdna meja dinamika mehurčka true false true Angleški jezik Slovenski jezik Članek v reviji 2024-07-03 14:12:59 2024-07-03 14:13:04 2024-07-13 03:53:15 0000-00-00 00:00:00 2024 0 0 9 str. Vol. 177, art. 111235 Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.528 0030-3992 10.1016/j.optlastec.2024.111235 200584195 1-s2.0-S0030399224006935-main.pdf 1-s2.0-S0030399224006935-main.pdf 1 093A8E7908F7B0761690A9884B01CF1E bc832d6dc883ad3ab4a111f236bcbfd91d4ff8b20ac27ab937b2dd836c5c8d36 64078f9f-39d6-11ef-90ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=187212 https://www.sciencedirect.com/science/article/pii/S0030399224006935 1 98b286c2-3935-11ef-a3da-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=187160 Fakulteta za strojništvo 0 0 0