CVLGrid provides many time-saving features for hydrodynamic modelers that support an iterative grid building process. After building or loading an existing EFDC grid or third-party model grid into CVLGrid, there is a wide range of grid editing tools to allow refining, smoothing, telescoping, and boundary fitting of the model domain. You can then save your grid and load directly into EE or export to another modeling tool to build the final model.
Maintain I, J Map
One important feature of CVLGrid is the ability to import an existing EFDC+ model grid, make small changes to the grid, and then write the entire model back out. This feature is available if you do not make changes to the grid that change the maximum I or maximum J (IC and JC variables in EFDC) in the model. This allows you to iteratively improve orthogonalization or the fit to the land boundary quickly, without having to generate a new model in EFDC each time edits are made.
CVLGrid imports 2D curvilinear orthogonal grids from a range of other models and formats. Once imported, the user may then display various attributes of the model such as orthogonal deviation, cell size, and coordinates.
You can have complete control over the model grid with a wide range of tools for adding, deleting and deactivating cells, moving grid nodes, grid coarsening, refinement, regularizing, telescoping, fitting to boundaries, and more.
CVLGrid allows you to export a grid so that it may be directly run by EFDC or loaded into EFDC_Explorer and further configured from there. You may also export the grid to many recognized grid formats for use in other modeling tools.