Journal article

Canopy resistance on oscillatory flows

V Etminan, RJ Lowe, M Ghisalberti

Coastal Engineering | Elsevier BV | Published : 2019


Aquatic vegetation in the coastal zone dissipates wave energy and provides a form of natural coastal protection against storm waves. The capacity of aquatic vegetation to attenuate incident waves depends on the extent to which wave energy is dissipated by small-scale hydrodynamic interactions within a canopy, which in turn depends on the work done by drag forces exerted by the canopy. Canopy drag forces (and hence rates of wave dissipation) are conventionally parameterised using a drag coefficient (Cd). Existing empirical models for predicting Cd are usually dependent solely on either Reynolds number (Re) or Keulegan–Carpenter number (KC), and hence neglect the potential effect of vegetation..

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Awarded by Australian Research Council

Funding Acknowledgements

V.E. was supported by an International Postgraduate Research Scholarship and a University Postgraduate Award from the Australian Government and the University of Western Australia. R. J. L. and M. G. acknowledge support for the project provided by an Australian Research Discovery Project Grant (DP170100802). Computational resources for the project were provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia.