Nonlinear Wave Runup on Large Circular Cylinders

by David L. Kriebel, U.S. Naval Acad, Annapolis, United States,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Oceans V

Abstract:

Various design methods for computing nonlinear wave runup on a large-diameter circular cylinder are presented. First, empirical correlations are developed between the observed maximum wave runup and the incident wave and cylinder properties. Then, a simple theoretical method is developed for obtaining design estimates of the maximum runup. This method is based on the well-known linear diffraction theory and on the assumption that higher-order harmonic components of a nonlinear wave can be treated as if they were linear waves in order to estimate their individual runup contribution. It is then shown that these simplified methods can predict the measured runup with an accuracy comparable to more computationally intensive second-order diffraction methods.

Subject Headings: Nonlinear waves | Wave runup | Cylinders | Water waves | Nonlinear analysis | Wave diffraction | Structural design

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