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Model rivers, floodplains and urban areas at the right level of detail, using our powerful 1D and 2D solvers

1D solver

Developed for 40 years, our 1D solver has become one of the fastest and most robust solutions available, making it an ideal choice for flood modelling applications.

The 1D steady and unsteady state solvers provide a comprehensive range of methods for simulating flows and water levels and can be confidently applied to a range of applications.

2D ADI solver

The ADI solver has been developed for fluvial, overland, estuarine and coastal modelling problems where the flow is not rapidly changing.

It is quick, accurate and robust, and is based on the long-established depth integrated velocities and solute transport (DIVAST) numerical engine which was first developed in the 1980s.

2D TVD solver

The TVD solver has been developed specifically to provide accurate representation of two-dimensional ‘shocks’ (rapid changes in water surface profile).

This solver allows complex hydraulics to be calculated more accurately and provides increased stability as TVD simulations are less prone to numerical oscillations than other solvers.

2D FAST solver

The FAST solver has been developed to enable rapid assessments of flooding. It provides results up to 1,000 times quicker than traditional 2D solvers.

Providing results in seconds or minutes, as opposed to hours or days, different types of flooding can be rapidly screened, considerably reducing the cost and time spent modelling.

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