Settling of a cylindrical particle in a stagnant fluid

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskning

Resumé

The objective of this work is to collect data and develop models for cylindrical particles which could be used in numerical multiphase flow modeling. Trajectories of cylindrical particles settling in stagnant water are filmed from two directions in order to derive detailed information on their motion. In total 66 experiments were carried out with a particle Reynolds number in the range between 2000 and 15000. All experiments show a distinct oscillation around one of the particle minor axes. For all experiments the oscillating velocity is compared to the mean settling velocity, and it is found that the oscillating velocity increases with increasing mean settling velocity. Based on the experiment new expressions for drag and lift coefficient are proposed.
OriginalsprogEngelsk
Publikationsdato2007
Antal sider9
StatusUdgivet - 2007
BegivenhedInternational Conference on Multiphase Flow, ICMF 2007 - Leipzig, Tyskland
Varighed: 9 jul. 200713 jul. 2007
Konferencens nummer: 6

Konference

KonferenceInternational Conference on Multiphase Flow, ICMF 2007
Nummer6
LandTyskland
ByLeipzig
Periode09/07/200713/07/2007

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settling
fluids
lift coefficients
multiphase flow
drag coefficients
Reynolds number
trajectories
oscillations
water

Emneord

    Citer dette

    Sørensen, H., Rosendahl, L., Yin, C., & Mandø, M. (2007). Settling of a cylindrical particle in a stagnant fluid. Afhandling præsenteret på International Conference on Multiphase Flow, ICMF 2007, Leipzig, Tyskland.
    Sørensen, Henrik ; Rosendahl, Lasse ; Yin, Chungen ; Mandø, Matthias. / Settling of a cylindrical particle in a stagnant fluid. Afhandling præsenteret på International Conference on Multiphase Flow, ICMF 2007, Leipzig, Tyskland.9 s.
    @conference{7956f70480f14a7bb18fdd54f6e18f9c,
    title = "Settling of a cylindrical particle in a stagnant fluid",
    abstract = "The objective of this work is to collect data and develop models for cylindrical particles which could be used in numerical multiphase flow modeling. Trajectories of cylindrical particles settling in stagnant water are filmed from two directions in order to derive detailed information on their motion. In total 66 experiments were carried out with a particle Reynolds number in the range between 2000 and 15000. All experiments show a distinct oscillation around one of the particle minor axes. For all experiments the oscillating velocity is compared to the mean settling velocity, and it is found that the oscillating velocity increases with increasing mean settling velocity. Based on the experiment new expressions for drag and lift coefficient are proposed.",
    keywords = "Particle, Cylinder, Drag, Lift, Terminal velocity",
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    note = "6th International Conference on Multiphase Flow, ICMF 2007 ; Conference date: 09-07-2007 Through 13-07-2007",

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    Sørensen, H, Rosendahl, L, Yin, C & Mandø, M 2007, 'Settling of a cylindrical particle in a stagnant fluid' Paper fremlagt ved International Conference on Multiphase Flow, ICMF 2007, Leipzig, Tyskland, 09/07/2007 - 13/07/2007, .

    Settling of a cylindrical particle in a stagnant fluid. / Sørensen, Henrik; Rosendahl, Lasse; Yin, Chungen; Mandø, Matthias.

    2007. Afhandling præsenteret på International Conference on Multiphase Flow, ICMF 2007, Leipzig, Tyskland.

    Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskning

    TY - CONF

    T1 - Settling of a cylindrical particle in a stagnant fluid

    AU - Sørensen, Henrik

    AU - Rosendahl, Lasse

    AU - Yin, Chungen

    AU - Mandø, Matthias

    PY - 2007

    Y1 - 2007

    N2 - The objective of this work is to collect data and develop models for cylindrical particles which could be used in numerical multiphase flow modeling. Trajectories of cylindrical particles settling in stagnant water are filmed from two directions in order to derive detailed information on their motion. In total 66 experiments were carried out with a particle Reynolds number in the range between 2000 and 15000. All experiments show a distinct oscillation around one of the particle minor axes. For all experiments the oscillating velocity is compared to the mean settling velocity, and it is found that the oscillating velocity increases with increasing mean settling velocity. Based on the experiment new expressions for drag and lift coefficient are proposed.

    AB - The objective of this work is to collect data and develop models for cylindrical particles which could be used in numerical multiphase flow modeling. Trajectories of cylindrical particles settling in stagnant water are filmed from two directions in order to derive detailed information on their motion. In total 66 experiments were carried out with a particle Reynolds number in the range between 2000 and 15000. All experiments show a distinct oscillation around one of the particle minor axes. For all experiments the oscillating velocity is compared to the mean settling velocity, and it is found that the oscillating velocity increases with increasing mean settling velocity. Based on the experiment new expressions for drag and lift coefficient are proposed.

    KW - Particle

    KW - Cylinder

    KW - Drag

    KW - Lift

    KW - Terminal velocity

    M3 - Paper without publisher/journal

    ER -

    Sørensen H, Rosendahl L, Yin C, Mandø M. Settling of a cylindrical particle in a stagnant fluid. 2007. Afhandling præsenteret på International Conference on Multiphase Flow, ICMF 2007, Leipzig, Tyskland.