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Characterization of the spatial distribution state of particles transported by a turbulent gas flow

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Abstract

A concept is presented for the characterization of the spatial arrangement of particles dispersed in fluids. Exact knowledge of the spatial distribution state of dispersed phases is very useful for many chemical engineering processes. A suitable characterization is done by means of computing the frequency distributions of distances between neighbouring particles. The computation is accomplished on the basis of data obtained by hologram evaluation. Measurements were conducted via pulsed-laser holography. The examples described concern collectives of water droplets and glass spheres transported by a turbulent gas flow through a pipe. The experimental results are compared with theoretically obtained frequency distributions of particle distances for particles arranged in space purely at random.

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References

  • Neumann, P.; Umhauer, H. 1989: Prerequisites, capabilities and limits of pulse holography when investigating the state and transport behaviour of disperse phases in gaseous flows. Int. Conference on Mechanics of Two-Phase Flows; National Taiwan University; Taipei, Taiwan, ROC, 79–84

    Google Scholar 

  • Raasch, J.; Umhauer, H. 1989: Computation of the frequency distributions of distances between particles randomly dispersed in a fluid flow. Part. Part. Syst. Charact. 6, 13–16

    Google Scholar 

  • Schäfer, M.; Baumgartner, Hp.; Löffler, F.; Umhauer, H. 1986: Bestimmung der Tropfengrößenverteilung eines Ultraschallzerstäubers. Chem.-Ing.-Tech. 58, 895–897

    Google Scholar 

  • Schäfer, M. 1986: Determinierte Beschreibung des Zustandes disperser Phasen in Strömungen durch Aufnahme und vollständige Auswertung von Doppelimpulshologrammen. Dissertation, Universität Karlsruhe (TH)

  • Schäfer, M.; Bottlinger, M.; Löffler, F.; Umhauer, H. 1987: Investigation of the state and transport of particulate phases in a turbulent tube flow. Part. Charact. 4, 1–6

    Google Scholar 

  • Schäfer, M.; Umhauer, H. 1987: Realization of a concept for the complete evaluation of double pulse holograms of particulate phases in flows. Part. Charact. 4, 166–174

    Google Scholar 

  • Underwood, E. E. 1970: Quantitative stereologie. Addison-Wesley, pp. 83–84

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Authors and Affiliations

  1. Institut für Mechanische Verfahrenstechnik und Mechanik, Universität Karlsruhe, Postfach 6980, 1, Karlsruhe, BRD

    P. Neumann & H. Umhauer

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  1. P. Neumann
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  2. H. Umhauer
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Neumann, P., Umhauer, H. Characterization of the spatial distribution state of particles transported by a turbulent gas flow. Experiments in Fluids 12, 81–89 (1991). https://doi.org/10.1007/BF00226569

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  • DOI: https://doi.org/10.1007/BF00226569

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