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The viscous damping of cnoidal waves

Published online by Cambridge University Press:  29 March 2006

Michael de st Q. Isaacson
Michael de st Q. Isaacson
Affiliation:
Joint Tsunami Research Effort, NOAA, University of Hawaii, Honolulu
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Abstract

The viscous damping of cnoidal waves progressing over a smooth horizontal bed is investigated. First approximations are derived for the attenuation of wave height with distance and for the friction coefficient at the bed. Attenuation coefficients are larger than those predicted on the basis of shallow-water sinusoidal wave theory and, unlike the case of sinusoidal waves, they are not independent of wave height. The limiting case of the solitary wave, considered previously by Keulegan (1948), is also discussed.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 75 , Issue 3 , 11 June 1976 , pp. 449 - 457
Copyright
© 1976 Cambridge University Press

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References

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