A nested version of the combined hydrodynamic and water quality model, DIVAST
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Nash, S. (2007) A nested version of the combined hydrodynamic and water quality model, DIVAST Proceedings of the Eleventh International Conference on Civil, Structural and Environmental Engineering Computing
The present research deals with the development of a one-way nested version of the combined hydrodynamic and water quality model DIVAST (Depth Integrated Velocity and Solute Transport). Initial research has concentrated on the development of a nested version of the hydrodynamic module of the model. Details of the nesting procedure used in the research are presented. The interpolation techniques employed at the fine/coarse grid boundaries are discussed as this is a vital element of any grid nesting scheme. Results obtained from the nested hydrodynamic model are presented and discussed. Comparisons are made between results from the nested model and coarse and fine resolution models of the same model domain. The results demonstrate the numerical accuracy of the nested model and the benefits of suitable boundary interpolation techniques.