TUFLOW is a computational engine that provides two-dimensional (2D) and one-
dimensional (1D) solutions of the free-surface flow equations to simulate flood
and tidal wave propagation. It is specifically beneficial where the hydrodynamic
behaviour in coastal waters, estuaries, rivers, floodplains and urban drainage
environments have complex 2D flow patterns that would be awkward to represent
using traditional 1D network models.

A powerful feature of TUFLOW is its 2D/1D dynamic linking, first pioneered in
1990, and subsequently enhanced to the point where it offers unparalleled
flexibility and robustness.

TUFLOW continues to develop and evolve to meet the challenges of
hydrodynamic modelling. Its strengths include:

• rapid and stable wetting and drying;
• 1D and 2D linking;
• multiple 2D domains (optional);
• both 1D and 2D representation of hydraulic structures;
• automatic upstream/downstream controlled flow regime switching;
• 1D and 2D supercritical flow;
• highly flexible and efficient data handling;
• GIS based
• extensive quality control outputs.

It is suited to modelling flooding in major rivers through to complex overland and piped urban flows, along with estuarine and coastal hydraulics.