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 eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : A comparison between boussinesq and nsw theories for the numerical simulation of wave setup
A comparison between boussinesq and nsw theories for the numerical simulation of wave setup
Increase in mean water level or setup is the result of the transfer of momentum to water column during the wave breaking
process. During the wave breaking process, wave energy dissipates mainly due to the turbulence. On the contrary of
momentum flux continues with no dissipation. Since the momentum flux at the shoreline is zero, an increase in the mean
water level occurs to compensate for the force generated by this flux and an equilibrium condition is satisfied. Considering
the horizontal balance of the net wave induced stresses: radiation stresses, mean surface level changes could be
obtained. So the accurate calculation of wave setup depends on the precise definition of the radiation stresses as a
function of wave properties such as shape and height. Wave parameters which are employed to calculate radiation stress
are functions of the applied wave theory. Aim of this paper is considering Boussinesq and NSW theories capability in
modeling wave setup and makes a comparison between them to propose the best theory for the numerical simulation of
wave setup.
File Size : 736,769 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 26/08/2015
Download Now