An Exact Analytical Solution to the Shallow Water Equations Near Beaches

M. Yourdkhani, Saber Zarrinkamar

Abstract


The nonlinear differential equation governing the dynamics of water waves can be well approximated by a linear counterpart in the case of shallow waters near beaches. The linear equation, which is of second order nature, cannot be exactly solved in many apparently simple cases. In our work, we consider the shape of system as a complete second-order polynomial which contains the constant (step-like), linear and quadratic shapes near the beach. We then apply some novel transformations and transform the problem into a form which can be solved in an exact analytical manner via the powerful Nikiforov-Uvarov technique. The eigenfunctions of the problem are obtained in terms of the Jacobi polynomials and the eigenvalue equation is reported for any arbitrary mode. 


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DOI: http://dx.doi.org/10.17951/aaa.2016.71.63
Date of publication: 2017-02-23 09:57:46
Date of submission: 2016-07-21 06:58:10


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