Breakup of Air Bubbles in Water: Memory and Breakdown of Cylindrical Symmetry
| Autor: | Sidney R. Nagel, Peder Moller, Nathan C. Keim, Wendy W. Zhang |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Physics
Singularity theory Bubble Nozzle General Physics and Astronomy FOS: Physical sciences Mechanics Condensed Matter - Soft Condensed Matter Breakup 01 natural sciences 010305 fluids & plasmas Surface tension Physics::Fluid Dynamics Singularity Classical mechanics 0103 physical sciences Pinch Soft Condensed Matter (cond-mat.soft) Gravitational singularity 010306 general physics |
| DOI: | 10.48550/arxiv.cond-mat/0605669 |
| Popis: | Using high-speed video, we have studied air bubbles detaching from an underwater nozzle. As a bubble distorts, it forms a thin neck which develops a singular shape as it pinches off. As in other singularities, the minimum neck radius scales with the time until breakup. However, because the air-water interfacial tension does not drive breakup, even small initial cylindrical asymmetries are preserved throughout the collapse. This novel, non-universal singularity retains a memory of the nozzle shape, size and tilt angle. In the last stages, the air appears to tear instead of pinch. Comment: Submitted to Phys. Rev. Lett. 4 pages, 4 figures. Revised for resubmission |
| Databáze: | OpenAIRE |
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