Effect of roughness and permeability of submerged breakwaters in wave-induced dynamic pressures

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

A. Neves (Author) Other; Fernando Veloso Gomes (Author) FEUP; F. Pinto (Author) Other

Conference proceedings International

Title: International Offshore and Polar Engineering Conference Proceedings

Pages: 2554-2560

17th International Offshore and Polar Engineering Conference (ISOPE 2007)

Lisbon, PORTUGAL, JUL 01-06, 2007

Indexing

ISI Proceedings

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences

Other information

Authenticus ID: P-004-EEA

Abstract (EN): Submerged breakwaters are coastal structures that act as a barrier to the wave action on the coastline, decreasing in general its direct impact and the risk of erosion. Understanding with more accuracy the fluid-submerged breakwaters interaction and the wave-induced pressures acting in these structures where roughness and permeability can lead to significant changes in the dissipation process, is one of the main objectives of this analysis. This study was based on experimental tests performed with regular waves, carried out in the wave tank of the Faculty of Engineering of the University of Porto. Three different models, with the same cross-section but with different roughnesses and permeabilities were tested and compared. Wave-induced dynamic pressures acting in the different points located along the surface of the submerged breakwater models' slopes was measured and the results revealed the important role of the roughness in the attenuation of the wave-induced pressures acting in the slopes. It was also clearly seen that permeability has also a decreasing effect in the maximum and the minimum dynamic pressures values.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7