In this paper in order to simulate nearshore currents in computational domains representing the complex morphology of real coastal regions we use a model based on a contravariant integral form of the fully nonlinear Boussinesq equations (FNBE). The contravariant integral form, in which Christoffel symbols are absent, of the continuity equation does not contain the dispersive term. The Boussinesq equation system is numerically solved by a hybrid finite volume-finite difference scheme. The wave breaking is represented by discontinuities of the weak solution of the integral form of the nonlinear shallow water equations (NSWE). The capacity of the proposed model to correctly simulate the wave train propagation on a highly distorted grid is verified against test case present in the literature. The simulation of wave fields and nearshore currents in the coastal region, opposite San Mauro Cilento (Italy) in presence of a system of T-head groins, is numerically reproduced by using the proposed model.

Wave Fields and Nearshore Currents in the Coastal Region Opposite San Mauro Cilento (Italy) / PALLESCHI, FEDERICA; IELE, BENEDETTA; TAMBURRINO, MARCO. - In: WSEAS TRANSACTIONS ON FLUID MECHANICS. - ISSN 1790-5087. - 15(2020), pp. 91-99. [10.37394/232013.2020.15.9]

Wave Fields and Nearshore Currents in the Coastal Region Opposite San Mauro Cilento (Italy)

FEDERICA PALLESCHI
Primo
Conceptualization
;
BENEDETTA IELE
Secondo
Conceptualization
;
MARCO TAMBURRINO
Ultimo
Conceptualization
2020

Abstract

In this paper in order to simulate nearshore currents in computational domains representing the complex morphology of real coastal regions we use a model based on a contravariant integral form of the fully nonlinear Boussinesq equations (FNBE). The contravariant integral form, in which Christoffel symbols are absent, of the continuity equation does not contain the dispersive term. The Boussinesq equation system is numerically solved by a hybrid finite volume-finite difference scheme. The wave breaking is represented by discontinuities of the weak solution of the integral form of the nonlinear shallow water equations (NSWE). The capacity of the proposed model to correctly simulate the wave train propagation on a highly distorted grid is verified against test case present in the literature. The simulation of wave fields and nearshore currents in the coastal region, opposite San Mauro Cilento (Italy) in presence of a system of T-head groins, is numerically reproduced by using the proposed model.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/1388798
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