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  Bubble shape and orientation determination with a four-point optical fibre probe

Guet, S., Luther, S., & Ooms, G. (2005). Bubble shape and orientation determination with a four-point optical fibre probe. Experimental Thermal and Fluid Science, 29, 803-812. doi:10.1016/j.expthermflusci.2005.03.007.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-156D-6 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-156E-4
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 Urheber:
Guet, S., Autor
Luther, S.1, Autor           
Ooms, G., Autor
Affiliations:
1Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063288              

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 Zusammenfassung: We propose a new method to estimate the aspect ratio and orientation of bubbles by using their time series obtained with a four-point optical-fibre probe. The feasibility and accuracy of the method was first analysed by using synthetic bubble–probe interaction data and single bubble experiments in pure water. Reasonable comparisons between this new technique and image analysis results were obtained. As a next step, the technique is applied to a vertical bubbly pipe flow at high void fraction. The typical bubble spherical equivalent diameter is 2–8 mm. The results provided by these measurements are compared with an available bubble aspect ratio correlation. A reasonable agreement is found. Some first results about the bubble orientation changes with bubble shape in bubbly shear flows are also presented.

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 Datum: 2005-08
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 281404
DOI: 10.1016/j.expthermflusci.2005.03.007
 Art des Abschluß: -

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Titel: Experimental Thermal and Fluid Science
  Alternativer Titel : Exp. Therm. Fluid Sci.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 29 Artikelnummer: - Start- / Endseite: 803 - 812 Identifikator: -