Modelling of Environmental Parameters of a Harbor Basin in a Coastal Zone with a Seawall

Proceedings

Koutitas, Christopher¹  Savvidis, Yiannis²  Pechlivanidis, George³  Keramaris, Evangelos⁴ 

[1] Author to whom correspondence should be addressed.;Department of Civil Engineering T.E., Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, 57400 Sindos, Greece;Department of Civil Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;Department of Civil Engineering, University of Thessaly, Pedion Areos, 38334 Volos, Greece

关键词: coastal zone;    renewal time;    self-purification capacity;    numerical model;    PIV measurements;   

DOI  :  10.3390/proceedings2110575

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Long straight seawalls along the coastal front are quite common, especially in cases of coastal cities. In this study in the middle of a coastal zone, a harbor basin in the form of an orthogonal area recessed to the waterfront is considered. A mole of variable length and position offers protection from waves. The renewal time of the waters and the self-purification capacity of the harbor under the influence of alongshore coastal currents of different intensity were examined. The effect of technical partial closing of the harbor’s entrance to the water renewal rate is examined in the present research. More specifically, the study was based on the use of a two dimensional, depth averaged hydrodynamic model which describes the water circulation along the coastal zone. For the solution of the equations of mass and momentum conservation, the method of finite differences was used. The adjustment and the validation of the reliability of the numerical model at a laboratory level were conducted in a recent research based on the use of PIV measurements which ensured a very good agreement between numerical and experimental results.

【 授权许可】

CC BY