Computer Science – Sound
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.590..545s&link_type=abstract
In: 17th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 30 May - 2 June 2005, Sandefjord, Norway.
Computer Science
Sound
Microgravity, Interfacial Deformation, Marangoni Convection, Thin Films, Interfacial Tension, Anionic Surfactants
Scientific paper
We present a sounding rocket experiment studying the interplay between chemistry and interfacial-tension-driven hydrodynamic instabilities. The system on hand is a combination of two immiscible liquids separated along an initially plane interface at which an interfacial reaction takes place. The reaction leads to an in-situ formation of a surface-active product. This system is studied using an integrated Hele-Shaw cell concept developed in the project. With onset of the microgravity phase four Hele-Shaw cells are filled manually. Basic diagnostic tools are two shadowgraph visualization systems of high resolution and two differential interferometer, each of them containing one cell. The experiment shows an intriguing dynamic interplay between cellular Marangoni convection, thin film dynamics and interfacial deformations.
Acker Margret
Eckert Kerstin
Heinze Armin
Shi Ying
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