C. Bondzie et Vg. Panchang, EFFECTS OF BATHYMETRIC COMPLEXITIES AND WIND GENERATION IN A COASTAL WAVE-PROPAGATION MODEL, Coastal engineering, 21(4), 1993, pp. 333-366
A new wave modelling strategy has been developed by Holthuijsen et al.
( 1989) for estimating wave heights for engineering applications in c
oastal areas, This strategy as well as the original model itself of Ho
lthuijsen et al. (1989), called HISWA, are being used in several engin
eering applications. This paper examines two aspects of this model: it
s ability to adequately predict wave properties in regions with comple
x bathymetry where diffraction effects are likely to be important, and
its ability to model wave growth due to wind, The former is of intere
st because the model is based on the energy-balance equation and does
not explicitly incorporate diffraction. Other such models deal with th
is through artificial bounds on the energy, whereas HISWA does not. It
is therefore necessary for the engineer to be aware of its performanc
e in such situations. Investigations are therefore performed using hyd
raulic model data and the results of other mathematical models that ar
e known to adequately handle such bathymetric configurations. For comp
lex bathymetries, the model is found to give good simulations for sea-
states with considerable directional spreading. As the degree of sprea
ding decreased or for certain special wave conditions, model performan
ce was marginal. Finally, the model is used to study the physics of wa
ve decay and wind-induced growth in Saginaw Bay (Michigan) using proto
type data.