Dynamics of Multi-Chain Dust Clouds in Microgravity.

ORAL

Abstract

Dust clouds in microgravity have proven a versatile analog for the study of self-ordered (soft matter) systems, particularly those where structuring is determined by the redistribution of flow kinetic energy and local and global confinement. In this talk, data collected using the PK-4 device on the International Space Station (ISS) as part of Campaigns {\#}7 and {\#}9 will be discussed. This data will be compared to PK-4 BU data collected under gravity to allow examination of dust systems employing DC polarity switching and a RF field with a movable electrode. The redistribution of flow kinetic energy at the onset of polarity switching and the resulting formation and self-excited dynamics of multi-chain dust clouds during the application of polarity switching will also be examined..

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Authors

  • Truell Hyde

    Baylor University, CASPER - Baylor University

  • Lorin Matthews

    Baylor University, CASPER - Baylor University

  • Peter Hartmann

    Wigner Research Centre for Physics & CASPER - Baylor University,

  • Marlene Rosenberg

    UCSD, University of California San Diego

  • Oleg Petro

    JIHT RAS

  • Vladimir Nosenko

    German Aerospace Center and CASPER/Baylor University, DLR & CASPER - Baylor University

  • Eva Kostadinova

    Baylor University, CASPER - Baylor University

  • Jorge Carmona-Reyes

    CASPER - Baylor University