Abstract
As a new alternative countermeasure to protect the coastal zone and to increase the surfing possibilities in the Leirosa area of Portugal, multifunctional artificial reefs were investigated numerically in this paper. The primary surfing parameters used in the design (i.e., breaker type, peel angle, wave height at breaking, and currents around the artificial reef) were analyzed. The reef functionality was also analyzed for coastal protection. Two reef geometries with different reef angles of 45 and 66° were tested, considering two design wave conditions (storm and common) and two tide levels (medium and low). Simulations show that both reef geometries are adequate for surfing, although the reef angle of 66° is more suitable for standard surfers, and the 45° angle is more adequate for advanced/professional surfers. A morphodynamic study should be carried out to analyze the efficiency of the artificial surf reef for coastal protection. DOI: 10.1061/ (ASCE)WW.1943-5460.0000128. © 2012 American Society of Civil Engineers. CE Database subject headings: Coastal environment; Reefs; Hydrodynamics; Parameters; Numerical models; Portugal; Case studies. Author keywords: Surfing; Coastal protection; Multifunctional artificial reefs; Reef parameters; Numerical modeling.
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