Drag force on a vegetation field due to long-crested and short-crested nonlinear random waves |
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| Authors: | Dag Myrhaug Lars Erik Holmedal |
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| Institution: | Department of Marine Technology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway |
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| Abstract: | This paper provides a practical method for estimating the drag force on a vegetation field exposed to long-crested (2D) and short-crested (3D) nonlinear random waves. This is achieved by using a simple drag formula together with an empirical drag coefficient given by Mendez et al. (1999), in conjunction with a stochastic approach. Here the waves are assumed to be a stationary narrow-band random process. Effects of nonlinear waves are included by adopting the Forristall (2000) wave crest height distribution representing both 2D and 3D random waves. |
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| Keywords: | Vegetation field Drag force Long-crested waves Short-crested waves Nonlinear random waves Stochastic method |
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