Publications in Scientific Journals:

M. Koch, J. M. Rossello, Ch. Lechner, W. Lauterborn, R. Mettin:
"Dynamics of a Laser-Induced Bubble above the Flat Top of a Solid Cylinder-Mushroom-Shaped Bubbles and the Fast Jet";
Fluids, 7 (2022), 1; 2-1 - 2-39.

English abstract:
The dynamics of a laser-induced bubble on top of a solid cylinder is studied both experimentally and numerically. When the bubble is generated close to the flat top along the axis of the cylinder and its maximum radius exceeds the one of the flat top surface, it collapses in the form of a mushroom with a footing on the cylinder, a long stem and a hat-like cap typical for a mushroom head. The head may collapse forming a thin, fast liquid jet into the stem, depending on bubble size and bubble distance to the top of the cylinder. Several experimental and numerical examples are given. The results represent a contribution to understand the behavior of bubbles collapsing close to structured surfaces and in particular, how thin, fast jets are generated

cavitation bubble, fast jet, multiphase flow, single bubble, laser induced cavitation, computational fluid dynamics, OpenFOAM, high-speed imaging, mushroom bubble

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Electronic version of the publication:

Created from the Publication Database of the Vienna University of Technology.