<div class="csl-bib-body">
<div class="csl-entry">Koch, M., Rosselló, J. M., Hoeppe, H., Lechner, C., & Mettin, R. (2024, November 5). <i>Oblique jetting by bubbles close to the edge of a solid surface</i> [Conference Presentation]. Fünftes Kolloquium Kavitation und Kavitationserosion, Bochum, Germany. http://hdl.handle.net/20.500.12708/208251</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/208251
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dc.description.abstract
Jetting from single, laser-induced cavitation bubbles has been shown to be caused by boundary
conditions of several different kinds, such as a solid boundary, a free surface or pressure gradients
with a range of resulting jet velocities between few meters per second up to kilometers per second
(see e.g. [1,2]). In most cases the jetting direction is in accordance with the symmetry of the
problem, e.g. parallel to the boundary surface normal for infinite boundaries. In more complex
geometries, as e.g. close to solid edges or corners, however, oblique jetting may occur, i.e. with a
jetting direction non-parallel to the surface normal. In recent experiments with the XFEL at DESY
in combination with 3D numerical simulations [3] oblique jetting of laser-generated bubbles near a
flat, circular glass plate has been investigated. The talk focuses on the numerical results and gives
insight into the mechanism of oblique jetting.
[1] C. Lechner, W. Lauterborn, M. Koch, R. Mettin (2020). "Jet formation from bubbles near a solid
boundary in a compressible liquid: Numerical study of distance dependence". In: Phys. Rev. Fluids
5 (9), p. 093604. DOI: 10.1103/PhysRevFluids.5.093604
[2] D. Obreschkow, M. Tinguely, N. Dorsaz, P. Kobel, A. de Bosset, M. Farhat „Universal Scaling
Law for Jets of Collapsing Bubbles“. In: Physical Review Letters 107, p. 204501 (2011)
[3] J.M. Rosselló, H.P. Hoeppe, M. Koch, et al. „Jetting bubbles observed by x-ray holography at a
free-electron laser: internal structure and the effect of non-axisymmetric boundary conditions.“ In:
Exp Fluids 65 (2024). https://doi.org/10.1007/s00348-023-03759-9
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
Bubble jet; ; ; ; OpenFOAM
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dc.subject
X–ray holography
en
dc.subject
Laser–induced cavitation
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dc.subject
3D computational fluid dynamics
en
dc.subject
3D computational fluid dynamics
en
dc.title
Oblique jetting by bubbles close to the edge of a solid surface
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
University of Göttingen, Germany
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dc.contributor.affiliation
University of Ljubljana, Slovenia
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dc.contributor.affiliation
University of Göttingen, Germany
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dc.contributor.affiliation
University of Göttingen, Germany
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dc.relation.grantno
I5349-N
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dc.type.category
Conference Presentation
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tuw.project.title
Komplexe Dynamik von Kavitationsblasen an Objekten
