Numéro : 2077 - Year : 1988

Wave plan computation method

M.SAHLOUL V.CRITS J. PLANCKE, Ingénieurs aux Laboratoires d'Hydrodynamique, d'Hydraulique Appliquée et de Constructions Hydrauliques, Institut du Génie Civi1 de l’Université de Liège, B.

A study of linear monochromatic wave propagation is presented, based on a theory of potentials. The usual Berkhoff equation has been extended by the addition of partially pervious sol id boundary effects and the bed friction.

The problem has been solved by a hybride finite element method including the effect of singular local elements such as the end of break waters or wharfs. This numerical method confirms the interest of quadratic lagrangian finite elements.

The comparisons with analytical solutions and existing numerical =clt.5 show the validity of the method. Some original numerical examples also prove the good perfOm1anoe of the proposed Computation Method.

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