TY - GEN
T1 - FOUR-WAVE INTERACTIONS in SWAN
AU - Hashimoto, Noriaki
AU - Haagsma, Ij G.
AU - Holthuijsen, L. H.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - Several methods for computing the non-linear energy transfer due to resonant wave-wave interactions are implemented in an experimental version of the SWAN wave model. These methods and their mutual relationships (illustrating their evolution from one to the other) are described. Of these methods, two are addressed in some detail. Of the first, an approximate method called the modified SRIAM method, the accuracy and efficiency are numerically demonstrated for various directional spectra. The second, an exact method called the FD-RIAM, is up-graded from an earlier version (Hashimoto et al., 1998) on the basis of Komatsu and Masuda (2000) to solve an instability problem caused by singularities in the Boltzmann integral. The accuracy and stability of this exact method too are numerically investigated. This FD-RIAM, supplemented with all other processes of generation and dissipation (and triad wave-wave interactions) in SWAN, is applied to the shallow water Lake George in Australia.
AB - Several methods for computing the non-linear energy transfer due to resonant wave-wave interactions are implemented in an experimental version of the SWAN wave model. These methods and their mutual relationships (illustrating their evolution from one to the other) are described. Of these methods, two are addressed in some detail. Of the first, an approximate method called the modified SRIAM method, the accuracy and efficiency are numerically demonstrated for various directional spectra. The second, an exact method called the FD-RIAM, is up-graded from an earlier version (Hashimoto et al., 1998) on the basis of Komatsu and Masuda (2000) to solve an instability problem caused by singularities in the Boltzmann integral. The accuracy and stability of this exact method too are numerically investigated. This FD-RIAM, supplemented with all other processes of generation and dissipation (and triad wave-wave interactions) in SWAN, is applied to the shallow water Lake George in Australia.
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U2 - 10.1142/9789812791306_0034
DO - 10.1142/9789812791306_0034
M3 - Conference contribution
AN - SCOPUS:84950128563
T3 - Proceedings of the Coastal Engineering Conference
SP - 392
EP - 404
BT - Proceedings of the 28th International Conference on Coastal Engineering 2002
A2 - Smith, Jane McKee
PB - American Society of Civil Engineers (ASCE)
T2 - 28th International Conference on Coastal Engineering, ICCE 2002
Y2 - 7 July 2002 through 12 July 2002
ER -