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A new formulation for vegetation-induced damping under combined waves and currents

Abstract: Based on energy conservation a new analytical formulation for the evaluation of wave damping under the combined effect of waves and both following and opposing currents is presented. The formulation obtained for regular and random waves allows the derivation of analytical expressions for the vegetation drag coefficient as a function of wave damping parameters. These parameters are calibrated using a unique experimental set obtained in a large-scale wave basin considering the interaction of waves and currents with real vegetation representative of salt marshes, namely Spartina anglica and Puccinellia maritime. Comparisons show the quality of the analytical formulation under different hydrodynamic conditions, vegetation species and various Reynolds numbers formulated in terms of plant characteristics such as the deflected plant length accounting for the flow-induced bending of the vegetation. The new formulation can be useful to be implemented in phase averaged and phase resolving numerical models of wave propagation.

Other publications of the same journal or congress with authors from the University of Cantabria

 Fuente: Coastal Engineering, 2016, 107, 1?13

Publisher: Elsevier

 Publication date: 01/01/2016

No. of pages: 13

Publication type: Artículo de Revista

 DOI: 10.1016/j.coastaleng.2015.09.011

ISSN: 0378-3839,1872-7379

 Spanish project: BIA2014-59718-R

Publication Url: http://dx.doi.org/10.1016/j.coastaleng.2015.09.011