Document of bibliographic reference 141572

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Prototype measurements and small-scale model tests of wave overtopping at shallow rubble-mound breakwaters: the Ostia-Rome yacht harbour case
Abstract
The paper presents the comparison between the results of small-scale model tests and prototype measurements of wave overtopping at a rubble-mound breakwater. The specific structure investigated is the west breakwater of the yacht harbour of Rome at Ostia (Italy) and is characterized by a gentle seaward slope (1/4) and by a long, shallow foreshore. The laboratory tests firstly aimed at carefully reproducing two measured storms in which overtopping occurred and was measured. The tests have been carried out in two independent laboratories, in a wave flume and in a wave basin, hence using a two-dimensional (2-D) and a three-dimensional (3-D) setup. In the 2-D laboratory tests no overtopping occurred during the storm reproductions; in the 3-D case discharges five to ten times smaller than those observed in prototype have been measured. This indicates the existence of model and scale effects. These effects have been discussed on the basis of the results of several parametric tests, which have been carried out in both laboratories, in addition to the storm reproductions, varying wave and water level characteristics. Final comparison of all the performed tests with 86 prototype measurements still suggests the existence of scale and model effects that induce strong underestimation of overtopping discharge at small scale. The scale reproduction of wave breaking on the foreshore, together with the 3-D features of the prototype conditions and the absence of wind stress in the laboratory measurements, have been individuated as the main sources of scale and model effects. The paper also provides a comparison between the data and a largely used formula for wave overtopping discharges in the presence of structures similar to the one at hand. The suitable value of a roughness factor that appears in that formula is investigated and good agreement is found with other recent researches on rubble-mound breakwaters.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS:000263999600005
Bibliographic citation
Franco, L.; Geeraerts, J.; Briganti, R.; Willems, M.; Bellotti, G.; De Rouck, J. (2009). Prototype measurements and small-scale model tests of wave overtopping at shallow rubble-mound breakwaters: the Ostia-Rome yacht harbour case. Coast. Eng. 56(2): 154-165. https://dx.doi.org/10.1016/j.coastaleng.2008.03.009
Topic
Marine
Is peer reviewed
true

Authors

author
Name
Leopoldo Franco
author
Name
Jimmy Geeraerts
Affiliation
Universiteit Gent; Faculteit Ingenieurswetenschappen; Vakgroep Civiele Techniek
author
Name
Riccardo Briganti
author
Name
Marc Willems
Identifier
https://orcid.org/0009-0003-0009-1221
Affiliation
Vlaamse overheid; Beleidsdomein Mobiliteit en Openbare Werken; Vlaams Ministerie Mobiliteit en Openbare Werken; Departement Mobiliteit en Openbare Werken; Waterbouwkundig Laboratorium
author
Name
Giorgio Bellotti
author
Name
Julien De Rouck
Affiliation
Universiteit Gent; Faculteit Ingenieurswetenschappen; Vakgroep Civiele Techniek

Links

referenced creativework
type
DOI
accessURL
https://dx.doi.org/10.1016/j.coastaleng.2008.03.009

thesaurus terms

term
In situ measurements (term code: 4265 - defined in term set: ASFA Thesaurus List)
Laboratory tests (term code: 95171 - defined in term set: Transportation Research Thesaurus)
Overtopping (term code: 5902 - defined in term set: ASFA Thesaurus List)
Rubble mound breakwaters (term code: 97486 - defined in term set: Transportation Research Thesaurus)

Document metadata

date created
2009-10-14
date modified
2018-04-06