A semi-implicit finite difference model based on the three-dimensional shallow water equations is modified to use unstructured grids. There are obvious advantages in using unstructured grids in problems with a complicated geometry. In this development, the concept of unstructured orthogonal grids is
A scalable unstructured grid 3-dimensional finite volume model for the shallow water equations
β Scribed by David A. Ham; Julie Pietrzak; Guus S. Stelling
- Book ID
- 116801907
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 504 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1463-5003
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## Abstract Simulations of the global atmosphere for weather and climate forecasting require fast and accurate solutions and so operational models use highβorder finite differences on regular structured grids. This precludes the use of local refinement; techniques allowing local refinement are eith
A new algorithm for the solution of the shallow water equations is introduced. The formulation is founded on a suitable operator-splitting procedure for which a characteristic-based rational form of including balancing dissipation terms is achieved. In the semi-explicit form the method circumvents