A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SWAN SurfBeat-1D
https://orcid.org/0000-0001-8732-6748
https://orcid.org/0000-0001-9020-2105
Abstract The Simulating WAves Nearshore (SWAN) model has been extended with an infragravity module to predict the Wave-Group-Forced (WGF) infragravity response to a frequency-directional sea-swell spectrum at a mildly sloping alongshore uniform beach. To that end the SWAN model has been extended with an WGF-infragravity source term denoted where the subscript denotes surfbeat. The corresponding WGF infragravity energy model has been verified with a set of benchmark tests using the infragravity amplitude model of Reniers et al. (2002). Next the implementation of the energy balance in SWAN has been validated with both prototype-scale laboratory experiments and field observations, showing a good comparison with observations not affected by the nodal structure of the (partially) standing infragravity waves. This suggests that the model is capable of providing improved infragravity boundary conditions in relatively shallow water compared to the typical assumption of equilibrium forcing conditions using for instance Hasselmann’s equilibrium theory (Hasselmann, 1962). These infragravity boundary conditions can subsequently can be used by other more sophisticated models to compute runup, overtopping and dune erosion.
Highlights Possibility to compute the combined sea/swell and accompanying infragravity waves in the nearshore with SWAN. Frequency-directional distribution of incoming and reflected infragravity waves. Validation with benchmark testing, large-scale laboratory observations and field measurements.
SWAN SurfBeat-1D
https://orcid.org/0000-0001-8732-6748
https://orcid.org/0000-0001-9020-2105
Abstract The Simulating WAves Nearshore (SWAN) model has been extended with an infragravity module to predict the Wave-Group-Forced (WGF) infragravity response to a frequency-directional sea-swell spectrum at a mildly sloping alongshore uniform beach. To that end the SWAN model has been extended with an WGF-infragravity source term denoted where the subscript denotes surfbeat. The corresponding WGF infragravity energy model has been verified with a set of benchmark tests using the infragravity amplitude model of Reniers et al. (2002). Next the implementation of the energy balance in SWAN has been validated with both prototype-scale laboratory experiments and field observations, showing a good comparison with observations not affected by the nodal structure of the (partially) standing infragravity waves. This suggests that the model is capable of providing improved infragravity boundary conditions in relatively shallow water compared to the typical assumption of equilibrium forcing conditions using for instance Hasselmann’s equilibrium theory (Hasselmann, 1962). These infragravity boundary conditions can subsequently can be used by other more sophisticated models to compute runup, overtopping and dune erosion.
Highlights Possibility to compute the combined sea/swell and accompanying infragravity waves in the nearshore with SWAN. Frequency-directional distribution of incoming and reflected infragravity waves. Validation with benchmark testing, large-scale laboratory observations and field measurements.
SWAN SurfBeat-1D
https://orcid.org/0000-0001-8732-6748
https://orcid.org/0000-0001-9020-2105
Abstract The Simulating WAves Nearshore (SWAN) model has been extended with an infragravity module to predict the Wave-Group-Forced (WGF) infragravity response to a frequency-directional sea-swell spectrum at a mildly sloping alongshore uniform beach. To that end the SWAN model has been extended with an WGF-infragravity source term denoted where the subscript denotes surfbeat. The corresponding WGF infragravity energy model has been verified with a set of benchmark tests using the infragravity amplitude model of Reniers et al. (2002). Next the implementation of the energy balance in SWAN has been validated with both prototype-scale laboratory experiments and field observations, showing a good comparison with observations not affected by the nodal structure of the (partially) standing infragravity waves. This suggests that the model is capable of providing improved infragravity boundary conditions in relatively shallow water compared to the typical assumption of equilibrium forcing conditions using for instance Hasselmann’s equilibrium theory (Hasselmann, 1962). These infragravity boundary conditions can subsequently can be used by other more sophisticated models to compute runup, overtopping and dune erosion.
Highlights Possibility to compute the combined sea/swell and accompanying infragravity waves in the nearshore with SWAN. Frequency-directional distribution of incoming and reflected infragravity waves. Validation with benchmark testing, large-scale laboratory observations and field measurements.
SWAN SurfBeat-1D
Reniers, Ad (author) / Zijlema, Marcel (author)
Coastal Engineering ; 172
2021-11-27
Article (Journal)
Electronic Resource
English
| Engineering Index Backfile | 1940
| British Library Conference Proceedings | 2003
| TIBKAT | 2007
| UB Braunschweig | 2007
Announcements: - Tan Swan Beng Award
Online Contents | 2001