Settling of a cylindrical particle in a stagnant fluid

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearch

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.
Original languageEnglish
Publication date2007
Number of pages9
Publication statusPublished - 2007
Event6th International Conference on Multiphase Flow - Leipzig, Germany
Duration: 9 Jul 200713 Jul 2007
Conference number: 6

Conference

Conference6th International Conference on Multiphase Flow
Number6
CountryGermany
CityLeipzig
Period09/07/200713/07/2007

Fingerprint

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

Keywords

  • Particle
  • Cylinder
  • Drag
  • Lift
  • Terminal velocity

Cite this

Sørensen, H., Rosendahl, L., Yin, C., & Mandø, M. (2007). Settling of a cylindrical particle in a stagnant fluid. Paper presented at 6th International Conference on Multiphase Flow, Leipzig, Germany.
Sørensen, Henrik ; Rosendahl, Lasse ; Yin, Chungen ; Mandø, Matthias. / Settling of a cylindrical particle in a stagnant fluid. Paper presented at 6th International Conference on Multiphase Flow, Leipzig, Germany.9 p.
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author = "Henrik S{\o}rensen and Lasse Rosendahl and Chungen Yin and Matthias Mand{\o}",
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Sørensen, H, Rosendahl, L, Yin, C & Mandø, M 2007, 'Settling of a cylindrical particle in a stagnant fluid', Paper presented at 6th International Conference on Multiphase Flow, Leipzig, Germany, 09/07/2007 - 13/07/2007.

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

2007. Paper presented at 6th International Conference on Multiphase Flow, Leipzig, Germany.

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearch

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. Paper presented at 6th International Conference on Multiphase Flow, Leipzig, Germany.