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An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave groups
AbstractIn this paper, we derive an unsteady refraction–diffraction model for narrowbanded water waves for use in computing coupled wave–current motion in the nearshore. The end result is a variable coefficient, nonlinear Schrödinger-type wave driver (describing the envelope of narrow-banded incident waves) coupled to forced nonlinear shallow water equations (describing steady or unsteady mean flows driven by the short-wave field). Comparisons with experimental data show that good accuracy can be obtained for cases of nonbreaking wave transformation. Numerical simulations show that the interaction of wave groups with longshore topographic nonuniformities generates strong edge wave resonances, providing a generating mechanism for low-order edge waves.
An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave groups
AbstractIn this paper, we derive an unsteady refraction–diffraction model for narrowbanded water waves for use in computing coupled wave–current motion in the nearshore. The end result is a variable coefficient, nonlinear Schrödinger-type wave driver (describing the envelope of narrow-banded incident waves) coupled to forced nonlinear shallow water equations (describing steady or unsteady mean flows driven by the short-wave field). Comparisons with experimental data show that good accuracy can be obtained for cases of nonbreaking wave transformation. Numerical simulations show that the interaction of wave groups with longshore topographic nonuniformities generates strong edge wave resonances, providing a generating mechanism for low-order edge waves.
An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave groups
Kennedy, Andrew B. (author) / Kirby, James T. (author)
Coastal Engineering ; 48 ; 257-275
2003-05-12
19 pages
Article (Journal)
Electronic Resource
English
An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave groups
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