DBPapers
DOI: 10.5593/SGEM2014/B41/S17.081

WAVE FARM INFLUENCES ON THE MANGALIA NEARSHORE WAVE PATTERN

A. T. Zanopol, F. Onea, E. Rusu
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 621-627 pp

ABSTRACT
The objective of the present work it is to evaluate the expected influence of a wave farm on the local wave field patterns. The target area is the Mangalia sector in the Romanian nearshore of the Black Sea. As a first step, in situ wave measurements from the Gloria drilling unit, covering a seven-year time interval (between 2003 and 2009) was considered for the present analysis. In order to identify the most representative wave conditions the following patterns were defined: a) average; b) high (non storm) and c) extreme (storm events). Several case studies were developed based on numerical simulations carried out with the SWAN model. In the SWAN computational domain a generic wave farm project was also included. The presence of the wave farm was considered throughout sequences of corner points of a line which act as an obstacle, modifying in this way the properties of the incoming waves. Locally, the significant wave heights are reduced while reporting to the geographical space the reflection and refraction processes become more significant. In order to identify various possible situations, the absorbing property of the generic farm was adjusted from a no farm scenario (zero absorption) to an ideal wave farm scenario (total absorption). It was noticed that the presence of the wave farm can significantly reduce the incoming wave height, which indicates that this type of project, besides the extraction of the renewable energy, can be considered also suitable for an effective coastal protection.

Keywords: Black Sea, Romanian nearshore, SWAN, wave farm, coastal impact