WIT Press


A Numerical Hybrid Model For The Solution Of Boussinesq-type Equations

Price

Free (open access)

Paper DOI

10.2495/HY980531

Volume

26

Pages

10

Published

1998

Size

710 kb

Copyright

WIT Press

Author(s)

J.S. Antunes do Carmo & F.J. Seabra-Santos

Abstract

Full solution of Boussinesq-type equations (two-dimensional in a horizontal plane) with resort to a finite element method has mainly the following advantages: i) it can be employed in any geometry, under complicated boundary conditions, ii) different local resolution of the computational grid can be treated, according to the bathymetric irregularities, without any additional computational effort. Nevertheless, in general, the solution of many real world problems using the finite element method takes a long time from the computational point of view; this prevents its use to obtain numerical solutions to the above mentioned mathematical models. In practice, this inconvenience has lead frequently to the use of mathematical models with lesser ability (p.e. the elliptic Berkho

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