| Home | Organizers | Proceedings Editors | Proceedings Contributors | Search | | ||
|
|
|||
|
||||
|
|
||||
| Title: | IMPROVEMENT OF THE NUMERICS AND DEEP-WATER PHYSICS IN AN ACADEMIC VERSION OF SWAN | |
| DOI No: | 10.1142/9789812701916_0068 | |
| Source: | COASTAL ENGINEERING 2004 (pp 855-867) | |
| Author(s): | ANDRÉ J. VAN DER WESTHUYSEN
Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands MARCEL ZIJLEMA Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands National Institute for Coastal and Marine Management/RIKZ, Kortenaerkade 1, 2500 EX, The Hague, The Netherlands JURJEN A. BATTJES Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands |
|
| Abstract: | Two aspects that affect the accuracy of the wave model SWAN, namely the criteria for run termination and the modelling of nonlinear four-wave interactions, are investigated. It is shown that the current criteria for the breaking off of simulations are inadequate. It is demonstrated that a new criterion, based on the curvature of the iteration curve of significant wave height, is more effective in obtaining fully-converged model results. An implementation of the Xnl exact method for computing quadruplet interaction is evaluated. It is shown that with this method fetch-limited growth curves and spectra are in better agreement with observations than when the default Discrete Interaction Approximation (DIA) is used. | |
| Full Text: | View full text in PDF format (537KB) | |
| TOC: | Back to Table of Contents | |
|
||