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Ocean Systems Engineering Volume 2, Number 4, December 2012 , pages 257-269 DOI: https://doi.org/10.12989/ose.2012.2.4.257 |
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Scour around spherical bodies due to long-crested and short-crested nonlinear random waves |
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Dag Myrhaug and Muk Chen Ong
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| 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. | ||
| Key Words | ||
| scour depth; self-burial depth; shear stress; long-crested waves; short-crested waves; nonlinear random waves; stochastic method | ||
| Address | ||
| Dag Myrhaug and Muk Chen Ong : Department of Marine Technology, Norwegian University of Science and Technology NO-7491 Trondheim, Norway | ||
