Stokes Drag on a Thin Circular Disk Moving Edgewise Midway Between Parallel Plane Boundaries

[+] Author and Article Information
Jeffrey F. Trahan

Department of Physics, Centenary College of Louisiana, Shreveport, Louisiana 71134jtrahan@centenary.edu

J. Fluids Eng 128(4), 887-889 (Dec 08, 2005) (3 pages) doi:10.1115/1.2201650 History: Received August 01, 2005; Revised December 08, 2005

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Copyright © 2006 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 4

Comparison of the theoretical and experimental dimensionless drag K for infinitely thin disks of diameter d falling edgewise midway between parallel walls spaced a distance D apart. The equation for K0 is Eq. 6. It is an empirical equation obtained from the experimental data.

Grahic Jump Location
Figure 3

Dimensionless drag vs the aspect ratio of the disks. The symbols that are circles or squares represent the different types of disk materials, the triangular symbols are the results of the theoretical beads-on-a-shell calculations for disks in an infinite fluid, and the solid lines follow the empirical fit to the data.

Grahic Jump Location
Figure 2

Geometry of the real problem: a circular disk of thickness t and diameter d falls vertically in a tank filled with viscous liquid between sidewalls spaced a distance D apart




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