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TUFLOW Modules

Multiple 2D Domains (M2D) Module allows any number of 2D domains of different cell size and orientation to be built into a model. The 2D domains can be linked by 1D domains, or via the 2D/2D linking feature. Each domain can be of different cell size, orientation and extent.

For example, a 1D domain of a river system may have several 2D domains embedded to represent several townships where a more detailed 2D analysis is required. Another scenario is to use a coarser 2D grid linking to a finer resolution 2D domain over the area of interest. 1D elements can link between the different 2D domains, for example, an underlying pipe network can be linked to any number of different 2D domains.

To have access to multiple 2D domains requires having access to the M2D Module.

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The TUFLOW GPU module allows TUFLOW HPC to access graphics processing unit (GPU) hardware for its compute. TUFLOW is compatible with NVIDIA GPU and delivers a 10 to 100 times speed increase!

The GPU module has been configured to allow access to multiple GPU cards in parallel for a single simulation. This provides exceptional performance for larger models with 10’s of millions of 2D cells and makes the GPU module well suited to high speed, high accuracy real-time applications.

TUFLOW HPC and its GPU module seamlessly slot into TUFLOW “Classic”. It has the power and flexibility of TUFLOW’s superior GIS functionality, scripting and scenario/event management.

TUFLOW HPC’s 2D explicit finite volume solution offers 2nd order space accuracy, 1st or 4th order time solutions and is unconditionally stable. It solves the full 2D free-surface equations including inertia and sub-grid turbulence (eddy viscosity). The 2D solver was coupled with TUFLOW’s 1D solver ESTRY in 2017 and as such now includes full 1D pit, pipe, culvert and open channel functionality. For further information about the HPC Solver, see the Solvers page.

Interested in testing your own GPU hardware speed performance? Download and run our licence free hardware benchmark models, Hardware Benchmark Models.


TUFLOW AD (Advection Dispersion) is a module for simulating depth-averaged, two and one-dimensional constituent fate and transport. Both dissolved and particulate constituents can be simulated.

TUFLOW AD takes depth and velocity fields computed by the TUFLOW and ESTRY engines and uses this information, together with initial and boundary conditions, to simulate the advection and dispersion of constituents. TUFLOW AD is specifically oriented towards such analyses in systems including coastal waters, estuaries, rivers, floodplains and urban areas.

The TUFLOW AD 2D advection solution algorithm is based on the third order ULTIMATE QUICKEST method of Leonard (1991), Leonard & Niknafs (1991) and Leonard et al. (1993). It solves the full two-dimensional, depth averaged, constituent conservation equation, including sink terms such as settling (for particulate species) and decay. The continuity equation is used to ensure conservation of mass.

The scheme also includes representation of mixing due to sub-grid-scale turbulence and vertical shear via the dispersion formulation provided in Falconer et al. (2005). The TUFLOW AD scheme implements automatic sub-stepping to maintain stability, and has the capability to adaptively expand its computational stencil from third to ninth order if strong constituent gradients are identified.


"Under Construction"

"Under Construction