IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Overtopping prediction of cube and cubipod armored breakwaters using the clash neural network
Overtopping prediction of cube and cubipod armored breakwaters using the clash neural network
Author : JORGE MOLINES (1), GLORIA ARGENTE (2), MARIA P. HERRERA (3) & JOSEP R. MEDINA (4)
ABSTRACT
Overtopping estimation on mound breakwaters depends on climatic and geometrical variables. The roughness factor (¶√f)
is commonly used in overtopping estimators to take into account the armor unit shape, placement, number of layers and
permeability. Usually, the ¶√f given in the literature is associated with the armor unit type and number of layers. In this
study, the ¶√f is considered a coefficient to be calibrated and dependent as well on the database used for calibration and
the overtopping estimator.
The CLASH Neural Network (CLNN) and small-scale tests carried out at the Universitat Polit®®cnica de Val®®ncia are used
here to obtain the roughness factor which minimizes the prediction error of double-layer cube armors and single- and
double-layer Cubipod armors.
The CLNN minimizes the prediction error when using ¶√f [cubes 2Layers randomly-placed] = 0.54; ¶√f [Cubipod 1Layer] =
0.48 and ¶√f [Cubipod 2Layers] = 0.45, all of these slightly different from the ¶√f values given in the literature. Overtopping
discharge of double-layer cube armored mound breakwaters is higher than the discharge of single- and double-layer
Cubipod armors.
File Size : 329,757 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 13/08/2015
Download Now