Triple Coordinate Transforms for Prediction of Falling Cylinder Through the Water Column

[+] Author and Article Information
Peter C. Chu, Chenwu Fan, Ashley D. Evans, Anthony Gilles

Naval Ocean Analysis and Prediction Laboratory, Department of Oceanography, Naval Postgraduate School, 833 Dyer Road, Monterey, CA 93943

J. Appl. Mech 71(2), 292-298 (May 05, 2004) (7 pages) doi:10.1115/1.1651093 History: Received May 14, 2003; Revised September 19, 2003; Online May 05, 2004
Copyright © 2004 by ASME
Topics: Cylinders , Water
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White, F. M., 1974, Viscous Fluid Flow, 1st Ed., McGraw-Hill, New York.
Chu, P. C., Gilless, A. F., Fan, C., and Fleischer, P., 2002, “Hydrodynamical Characteristics of a Falling Cylinder in the Water Column,” Advances in Fluid Mechanics, 4 , M. Rahman, R. Verhoeven, and C. A. Brebbia, eds., WIT Press, Southampton, UK, pp. 163–181.


Grahic Jump Location
Cylinders’ track patterns observed during CYDEX
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Movement of Cylinder #1 (L=15.20 cm,ρ̄=1.69 g cm−3) with χ=0.74 cm and drop angle 45 deg obtained from (a) experiment, and (b) recursive model
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Movement of Cylinder #2 (L=12.10 cm,ρ̄=1.67 g cm−3) with χ=−1.00 cm and drop angle 30 deg obtained from (a) experiment, and (b) recursive model
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M-coordinate with the COM as the origin X and (im,jm) as the two axes. Here, χ is the distance between the COV (B) and COM, (L,d) are the cylinder’s length and diameter.
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Three coordinate systems



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