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BRIEF NOTES

Effect of Loop Shape on the Drag-Induced Lift of Fly Line

[+] Author and Article Information
Caroline Gatti-Bono

Applied Numerical Algorithms, Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720

N. C. Perkins

Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2125,

J. Appl. Mech 71(5), 745-747 (Nov 09, 2004) (3 pages) doi:10.1115/1.1778414 History: Received August 28, 2003; Revised December 16, 2003; Online November 09, 2004
Copyright © 2004 by ASME
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References

Spolek,  G. A., 1986, “The Mechanics of Flycasting: The Fly Line,” Am. J. Phys., 54(9), pp. 832–835.
Lingard,  S., 1988, “Note on the Aerodynamics of a Fly Line,” Am. J. Phys., 56(8), pp. 756–757.
Robson,  J. M., 1990, “The Physics of Flycasting,” Am. J. Phys., 58(3), pp. 234–240.
Hoffmann,  J. A., and Hooper,  M. R., 1998, “Fly Rod Response,” J. Sound Vib., 209(3), pp. 537–541.
Hendry, M. A., and Hubbard, M., 2000, “Dynamic Finite Element Simulation of Fly Casting and Its Potential Use in Fly Rod Design,” Proceedings: The Engineering of Sport, Blackwell Science, London, pp. 407–414.
Gatti-Bono,  C., and Perkins,  N. C., 2002, “Physical and Numerical Modelling of the Dynamic Behavior of Fly Line,” J. Sound Vib., 255(3), pp. 555–577.
Watanabe, T., and Tanaka, K., 2002, “Modelling the Dynamics of a Fly Line,” Proceedings The Engineering of Sport, Blackwell Science, London, pp. 353–359.
Gatti-Bono,  C., and Perkins,  N. C., 2003, “Comparison of Numerical and Analytical Solutions for Fly Casting Dynamics,” J. Sports Eng., 6(3), pp. 165–176.
Gatti-Bono, C., and Perkins, N. C., 2003, “Numerical Model for the Dynamics of a Coupled Fly Line/Fly Rod System and Experimental Validation,” J. Sound Vib., in press.
Perkins, N. C., and Richards, B., 2003, “Dissecting Your Casting Stroke,” Fly Fisherman, Primedia Magazines, Dec.
Krieger, M. K., 1987, The Essence of Flycasting, Club Pacific, San Francisco, CA.
Wulff, J., 1987, Fly Casting Techniques, The Lyons Press, Guilford, CT.
Kreh, B., 1991, Modern Fly Casting Method, Odysseus Editions, Birmingham, AL.
Sarpkaya T., and Isaacson M., 1981, Mechanics of Wave Forces on Offshore Structures, Van Nostrand Reinhold, New York.

Figures

Grahic Jump Location
The fly line “loop” is formed after the “stop” in a casting stroke and propagates as a nonlinear wave. This loop is asymmetrical and possesses a positive angle of attack. Such loops are a hallmark of expert fly casters.
Grahic Jump Location
Four qualitatively different loop shapes. (a) and (b) l=AE, (c) l=AF, and (d) l=AB
Grahic Jump Location
Kinematics of arbitrary loop

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