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http://dx.doi.org/10.12989/ose.2012.2.4.257

Scour around spherical bodies due to long-crested and short-crested nonlinear random waves  

Myrhaug, Dag (Department of Marine Technology, Norwegian University of Science and Technology)
Ong, Muk Chen (Department of Marine Technology, Norwegian University of Science and Technology)
Publication Information
Ocean Systems Engineering / v.2, no.4, 2012 , pp. 257-269 More about this Journal
Abstract
This paper provides a practical stochastic method by which the maximum equilibrium scour depth around spherical bodies exposed to long-crested (2D) and short-crested (3D) nonlinear random waves can be derived. The approach is based on assuming the waves to be a stationary narrow-band random process, adopting the Forristall (2000) wave crest height distribution representing both 2D and 3D nonlinear random waves, and using the regular wave formulas for scour and self-burial depths by Truelsen et al. (2005). An example calculation is provided.
Keywords
scour depth; self-burial depth; shear stress; long-crested waves; short-crested waves; nonlinear random waves; stochastic method;
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